Darker and Edgier: The series seems to have taken this turn. While an adult show, the gags of initial episodes were much more toned down and limited in mature humor, and even had a touch sentimentality. Post-Uncancelation the excessive mix of Dead Baby Comedy, Comedic Sociopathy, and Cringe Comedy has made the newly formed Sadist Show of acquired taste to say the least.
The episode "The Story of Brenda Q". While there are a few jokes thrown in, overall the episode is very serious. It's about Quagmire's sister, Brenda, being beaten by her boyfriend. Unusually for Family Guy, the topic is treated very seriously. Some of the abuse scenes are actually a little hard to watch.
Dating What Daddy Hates: Carter Pewterschmidt despises Peter, and isn't at all happy that Lois dates and eventually marries him. A rare example of this trope being Gender Flipped also occurs when Peter's staunchly Catholic father despises the Protestant Lois.
Dawn Attack: One of Peter's inventions flings Stewie into a tree, where he sees the Keebler elves plotting to "attack the Rice Krispies guys at dawn".
Dead Guy Puppet: Though it wasn't someone he killed, Peter finds an Indian Burial Ground in his backyard, including a skull. He names it "Chief Lou Diamond Phillips" and uses it as a puppet, among other things.
Quagmire has been becoming this more recently as has Chris. Lois slips into this on occasion. And after Taking center stage Cleveland has become somewhat snarkier.
Brian, though, is probably the most obvious example.
And as mentioned above, the Christmas Episode gets deconstructed.
Deep South: Season 3's "To Love and Die in Dixie" (where The Griffins are sent to Bumblescum, Alabama as part of Witness Protection) and season 5's "Boys Do Cry" (where The Griffins flee to Texas to escape religious nuts who think Stewie is possessed). It's worth noting that they portray the South in distinctly different ways in each episode. In the former, the locals are inbred hillbilly stereotypes but basically good people, while in the latter, they're behind-the-times intolerant Jerkasses.
Demoted to Extra: Neil Goldman used to appear a lot in the pre-cancellation seasons. However, once his dad Mort was introduced in season 3, he began to appear less often. He wasn't seen during season 5, had two brief cameos in one episode of season 6 and another in season 7, and was again absent for season 8. Also, Connie D'Amico, a popular girl who often antagonized Meg suffered a similar fate. Note that these characters only appeared in Meg-centric episodes, when nowadays Meg herself is victim of this trope too.
Brian - down-to-earth voice of reason and Only Sane Man in a world filled with jerks and morons, or a self-righteous and intolerant Small Name, Big Ego who belittles anyone who disagrees with him?
Depraved Bisexual: Meg is shown to have a crush on Connie. This is apparent when she tongue kisses her unconscious body in "Dial Meg for Murder" and in "Stew-roids" when she grumbled that she was still going to masturbate to Connie in the bath even after Connie said no.
Deus Exit Machina: Some characters seem to suddenly vanish for plot reasons.
Stewie: I'm not going to no Jewish school! Sitting around all day with a bunch of short, hairy guys. I'll feel like I'm on the forest moon of Endor. Chris: Didn't you make that joke the other day?
Lois: "Peter, we're lost. Would you please ask for directions?" Peter: "We are not lost. And even if we were I can't ask a human being for directions." Lois: "Why not?" Peter: "Because I'm a man. Haven't you ever seen a stand-up comedian, Lois?"
Disability as an Excuse For Jerkassery: Peter uses his diagnosis of being mentally retarded to be even more of an asshole than usual, being abusive to people, shoving to front of lines, and just generally misbehaving all with a "sorry, retarded".
In a later episode, Chris goes on a date with a girl with Down Syndrome, who ends up being incredibly abusive to him.
Diane Simmons, who is killed when Stewie shoots her and she falls off a cliff in the Season 9 premier.
In "North by North Quahog", Mel Gibson dies falling off Mount Rushmore.
Disproportionate Retribution: As a gag showing a Humiliation Conga of how bad Peter often treats Meg, it culminates with Peter sitting on the couch, watching TV, and shooting Meg in the face with a revolver just because she walked by and said "Hi dad."
"Killer Queen" has Charles Yamamoto, who tried to murder Chris because he beat him at a hotdog-eating contest.
When a kid pushes Stewie into the sand, his new girlfriend Penelope gives the kid a cyanide pill.
Distracted by the Sexy: In "Don't Make Me Over", the prisoners stop attacking Peter once Meg in her hot form walks on stage.
Divorce Requires Death: In one episode, Quagmire gets married to a woman who turns out to be insane and threatens suicide every time he tries to divorce her.
Domestic Abuse: Usually played for laughs, but finally taken very seriously in the episode "Screams of Silence: The Story of Brenda Q", which is about Quagmire's sister and her abusive boyfriend.
Don't Explain the Joke: A common criticism of the show that, Seth being Seth, is somewhat lampshaded.
The entire point of Fouad is to ignore this trope.
Michael: Are aces high or low? Peter: They go both ways. Bill: Did you hear that? He said they go both ways! (laughter) Ted: Like a bisexual. Carter: Yes, Ted, that was the joke.
Peter: Oh, Jenny. Oh, Jenny. Oh, Jenny.
(Lois sits up in bed and glares angrily at Peter.) Peter: Oh, Richard Jeni, your HBO comedy specials have brought pleasure to millions.
(Lois looks relieved and lies back down, closing her eyes.) Peter: And what a sweet ass...
(Lois' eyes shoot open in surprise.)
Drunken Master: Peter can only play the piano when he's drunk. "Now that's not true! I can also vomit, fall down, and make dirty calls to your sister when I'm drunk."
Ears as Hair: Peter's line about Brian's appearance at an upcoming dog show: "We haven’t even talked about how you’re gonna wear your ears. You know, ’cause I was thinking up."
Easy Sex Change: QUAGMIRE'S. DAD. She could have been on estrogen for a while and been binding the resulting breasts, and the long hair we see her with could be a wig. Admittedly, though, that was a VERY fast recovery from the gender reassignment surgery!! Particularly when Ida has sex with Brianso soon after the surgery. Though, of course, it's never specified that they had vaginal intercourse.
There was a somewhat debatable example, when Quagmire clearly had a chance to take advantage of Meg, and didn't. Debatable because he's not portrayed as evil, just a pervert. Considering Quagmire has been shown to be a serial rapist, kidnapper, and deliberately spreads STDs.
In "Chick Cancer", Stewie is shocked by Brian's thoughtless racism:
Stewie: I mean, what kind of man would I be if I ran off now? Brian: Well, you would be a black man. Stewie: Whoa, whoa, whoa, what was that? Brian: Ah, I'm sorry, I'm sorry. That was my father talking. Stewie: You, uh, gotta work on that man. Bad dog.
Another Stewie example: Lois tries to feed him...
Lois: Okay, Stewie, the airplane's coming in for a landing. Stewie knocks the spoon out of her hand. Stewie: Well, looks like the pilot was JFK Junior. *pause* Ooh, even I found that to be in bad taste.
When Brian became an extreme Republican, his attitude became too much even for Rush Limbaugh.
Even Nerds Have Standards: Neil Goldman is apparently so hideous that not even someone as desperate for attention as Meg would want him.
Everyone Is Bi: Almost every, if not all characters has had at least one gay experience on the show.
Executive Meddling: In-universe example: Brian Griffin has an idea for a show at CBS. Unfortunately it's altered beyond recognition by the execs. The reemergence of James Woods to twist the knife didn't help, either.
Evil-Detecting Dog: Played with when Death tries to chat up a woman who works in a pet shop, and she can't hear a word over every single animal going berserk.
Evil-Detecting Baby: Ironically enough, Stewie recognized that the head of the oil company wasn't a very nice man.
Stewie: "He don't sit right with me, Lois. He don't sit right with me."
Eviler Than Thou: In one episode, Stewie created a machine to make him more evil. It malfunctions and instead created a doppelganger.
Experimented in College: "Partial Terms of Endearment" reveals Lois dated another girl named Naomi in college.
Exposition Cut: Parodied in one episode. Peter comes up with a plan to stop students from using drugs at the Quahog high school. Peter is seen in the principal's office saying, "... and that's the plan." The principal points out that Peter never actually gave a plan but rather walked into his office and said this line.
Failure Is the Only Option: Any episode that centers around Brian. Trying to get a girlfriend? He'll lose em in some form or another. Trying to publish his book? It'll bomb horribly. Trying to finish college? Will fail the final test. Trying to make friends with someone who hates him? No dice. Say the least, if it's about Brian don't expect any happy endings for the guy. Or at most, him unable to accomplish what he set out to do.
Fake High: Once in a Cutaway Gag where Stewie thought he had drunk some alcohol but it was only apple juice; and once when all the family were beating each other up Brian gave everyone some of his "prescription" Happy Pills and everyone blissed out, but once Brian revealed that they were only sugar pills they went back to fighting each other.
Fan Service: Only evident on the DVD extras, but Seth MacFarlane is quite handsome and you can't resist that deep, sexy voice. For the more traditional Fan Service there are a few shots of Lois in various states of dishabille throughout the series.
"There's Something About Paulie": The two women wrestlers in the supermarket.
Various episodes: All the women from Stewie's "sexy parties".
Fan Vid: Parodied. In one episode, Stewie makes a video with the Bryan Adams song (Everything I Do) I Do It For You. It's full of random effects and Shout Outs to various famous works of art. Of course, when Brian (the dog, not the singer) points out that he doesn't get the storyline of the video, Stewie promptly tells him to "Shut up!"
Fantasy Twist: Stewie once fantasised about what his life would be like when he was grown up; the fantasy consisted of a balding, middle-aged Stewie asking his wife about an unfamiliar entry on their phone bill.
Fast-Forward Gag: An episode where Peter and Lois consider buying a TiVo has the salesman fast forward through their argument to get to the point where they agree. In the middle of the argument, Chris enters choking on something and Lois gives him the Heimlich Maneuver.
Fat Camp: After Lois lost her memory from Stewie's attempt at matricide, she works at a fat camp and tries to keep the kids from eating each other.
"Killer Queen" has Peter and Chris going to one of these.
Faux Affably Evil: Stewie in the early seasons and Peter himself in the later seasons.
Stewie seeing a woman's lower parts for the first time.
Quagmire's Ghost Story is clearly only scary to him.
Faux Symbolism: Played with in Stewie's music video for Susie, "Everything I Do." We see Stewie as a snowman, walking by a woman playing cello, and him utterly destroying and trashing a hotel room. Try and guess what that all means.
Brian: I'm not following the story here. Stewie: SHUT UP!!!
Fawlty Towers Plot: In the first episode, Peter doesn't want to tell Lois that he's lost his job, leading to this.
Cleveland: Is there anything that doesn't give you a boner, Glenn? Quagmire: People who use the word 'rubbish' when they mean 'garbage'.
If a cutaway is anything to go by, Peter has a thing for school girls when he and Lois role-played before sex. Not to mention Lois seems to have various bad boy and violence fetishes.
The family itself has had their traits exaggerated throughout the years:
Peter used to just be a moron who tried to do what's best for his family in spite of his shortcomings but is now just the Jerkass that's actually medically labeled as a mentally disabled person.
Lois has gone from loving, sensible, and slightly sex crazed mother to nymphomaniac who really doesn't give a damn about her family. Although she does show concern when it's needed, she still explicitly hates Meg, is never seen anywhere near Chris, and leaves Stewie off on his own almost all the time.
Although, despite the mild Flanderization in seasons four and five, Peter and Lois also remained the earlier parts of their personalities, but when Seth MacFarlane left the show's creative-writing department, their newer personalities were overly-exaggerated to the point where neither Peter, nor Lois are that caring about their family anymore. However, the seasons 6-present could be considered non-canon, due to lack of involvement with the original creator.
Meg has went from being a rather unpopular teenager to an extremely unpopular teenager. She's basically the show's punching bag unless the plot actually involves her.
Chris has been the least Flanderized, but his role in the series is gradually shrinking, though he has gained an unexplainablebaseline of intelligence. Starting from season 8, like Quagmire, Chris became more cynical and smarter than his original personality intended him to be, this must be due to Flanderization of Peter and Lois, as neither hardly care about their children anymore.
Brian has probably been the worst recipient of this. He started out as a Only Sane Man and Straight Man for Peter and Stewie. After the show was uncanceled, he began to drop some comments that mirrored some of Seth MacFarlane's political views. However, by Season 7 this was taken to the extreme with many episodes focused on Brian's political views, much to the audience's dismay. Fortunately, this trend stopped in Season 8.
Stewie's curiosity for homosexuality slowly growing to make him flat-out gay. This trait has taken him over so badly that he has lost a lot of his Evil Genius traits as a result. Granted, Stewie has apparently lampshaded his own Flanderization on at least two occasions where he realized he was losing his villainous touch and attempted to de-flanderize himself by (the first attempt) attempting to kill Lois again, and (the second attempt) getting back to inventing for the sake of evil. We see only traces of his older characterization in the later seasons, but not much at all. Seth MacFarlane has admitted that doing the take over the world thing every week was "getting played out".
The secondary characters have suffered this trope as well:
Joe. At one point he was a decent cop, and a great athlete, who just happened to be in a wheelchair. Now, being in a wheelchair just seems to be his thing, and he does not really appear to do as much or any police work anymore. The character himself hasn't changed though, and seems to be one of the characters left that is actually not a Jerkass (along with Meg, coincidentally both of them get picked on a huge amount)
Cleveland. Nothing more than just the black guy who has a few lines. Severe downgrade from former best friend status. Though it doesn't really matter, considering that Cleveland left Quahog and got his own spin-off. Lampshaded with the episode with the "text in what happens next" feature, where Cleveland only appears at the end for the viewers to "vote" on his line for that episode.
Quagmire's sexual tendencies were exaggerated to the point of being an outright perverted borderline-rapist. This has been toned back in later episodes. His Kafka Komedy related resentment towards Brian also started off as a subtle awkward moment after Stewie he supposedly offended his girlfriend in "The Man With Two Brians". In later episodes fate seems to lead Brian to fuel Quagmire's now occasionally violent hatred towards him. Since season 8, not only has he started hating on Brian, he's become really cynical, has an anger problem, and is frequently really intolerant of certain things: For example, Joe shouting "GET SOME GET SOME, YEAH!" in "Excellence in Broadcasting", and Peter shooting him and Joe in the eye in "Lotteryball Forever" (although it was reasonable, as Peter was being inconsiderate, but Quagmire's anger problem really shined there)!
Lois' father, Carter, also has his share of flanderization. He went from being a father that just disapproves of the husband his daughter married to a guy that stoops down to making Peter's life hell and doing childish acts just for the sake of making Peter remotely upset if it gets him to leave Lois. Lois takes advantage of this from time to time by pretending to get a divorce so her father can do her any favor she asks. His ruthlessness also exceeded past being an Obnoxious In Law to Peter into an outright Corrupt Corporate Executive with occasional Card-Carrying Villain shades.
Flashback Cut: In "Airport '07", Peter spits some chew into a cup. Stewie grabs the cup and, assuming it's a drink, goes to take a sip. Brian starts to warn Stewie, but thinks back to the events in "Patriot Games" when Stewie mercilessly beat Stewie for not paying up after a sports bet. After thinking about that, Brian shuts up and lets Stewie drink the spit-up chew.
Subverted once in the episode "Believe It or Not, Joe's Walking on Air"; we never see the result of giving a monkey the keys to an amusement park.
Also in the episode where Stewie and Brian join the army and Stewie makes a reference to one of Peter's antics and sets up for a cutaway that never manifests. He simply says "What? No clip? Oh, thought we had a clip." and the scene continues.
And again in the "Spies Like Us" parody where he (Along with Brian, Chevy Chase and Dan Aykroyd) get beaten up by a mind-conditioned Adam West. Stewie tries to mutter a line that'll trigger a cutaway but it come out unintelligible. We then cut to said cutaway where Stewie standing in a blank space and admitting the joke didn't come out right.
And again in the second James Woods episode, wherein Woods actually threatens Peter with the prospect of "setting up another one of his random flashbacks"
Also in the episode "Tiegs for Two", Peter says that his favorite shirt was stained by wine at a cocktail party hosted by Michael J. Fox. Instead of the flashback, Peter appears in front of a grey screen, stating that the writers don't want to show the cutaway, saying that it's 'just too sad', and explaining what the basis of the joke was. However, the writers eventually tell Peter to show the clip.
Brian is an atheist... despite the fact that God and Jesus are frequently seen in Quahog and he's actually met both of them on several occasions, not to mention how in one episode in the early seasons Brian was trying throughout most of the running time to convince Peter to stop getting people to worship him so that the real God would stop sending plagues upon them.
Of course, sometimes the show goes out of its way to justify his beliefs. "Family Goy" ends with Jesus himself saying that all religions are "pretty much crap", followed by an off-screen Brian shouting "Thank you!"
Played straight, subverted, and lampshaded. Played straight: Show's been on for 7+ seasons, but the children are still in school; Stewie is still a baby. Subverted: Chris goes to high school. Lampshaded: Peter bemoans Bonnie's pregnancy: Peter: "You've been pregnant for like 5 years. Either have the baby or don't." Eventually they did an episode dealing with the birth. Immediately after the nurse says "It's a girl!", Quagmire comments "I can't believe she's already 18." (Note, however, that this was just a throwaway joke; so far the daughter has been shown to be younger than Stewie.)
Another incident is the episode where Brian accidentally sells Stewie's stuffed teddy bear. At one point Brian comments that Stewie is getting too old for it anyway and he should move on, followed by:
Stewie: Brian... I'm one year old... Brian: Still? Stewie: What? Brian: What?
Averted with Cleveland Jr, who ages a lot from his last appearance on Family Guy to The Cleveland Show (though it will probably be played straight later on in the latter show).
In an early episode, Lois inherits a mansion and money from her rich aunt. In the 10th season, the Griffins win the lottery.
In "Death Has a Shadow", Peter is given welfare but when Lois finds out she is pissed. In order to make her happy, Peter gives all the money away at the Super Bowl.
Franchise Zombie: Based on this interview, MacFarlane himself believes the series has become this, to say nothing of the haters.
The Freelance Shame Squad: When the popular kids pelt Meg with rotten meat during her halftime routine, everyone in the stands points and laughs at her. It's worth noting because this was long before Meg became the over-exaggerated Butt Monkey that she is now.
Free-Range Children: Stewie generally wanders about the world with little concern from Lois and Peter. Hell, in one episode he even joined the army. The only concern we see from Lois is for Chris, who is more of age (although competence could be argued, considering that this is Chris).
Friction Burn: In one episode, Peter drank Red Bull, giving him a rush of energy, and then milked a cow so rapidly, its udder burst into flames. In the same scene Chris, who also drank Red Bull, was seen running around screaming, pantsless and his groin ablaze.
Friendly Tickle Torture: Lois does this to Stewie during a cutaway for nearly one minute straight... then throws up on him. In a different episode, Peter tickles Lois and she retaliates by hitting him in the face with a frying pan and breaking his nose.
Brian, who also acts as a living Deconstruction on occasion.
Cleveland and Quagmire in the Disney universe.
Fur and Loathing: When Lois wanted a fur coat, she sold out her environmental views, rather than just saving up.
Furry Confusion: Anthropomorphic dogs like Brian and Jasper are shown alongside regular, non-anthropomorphic ones such as Brian's mother, Biscuit and the Pewterschmidts' dog, Seabreeze. Occasionally lampshaded. "I was the one who could talk."
Garage Band: Chris starts a metal garage band in one episode.
Gay Aesop: MacFarlane (and possibly other staff members) is a gay rights activist, so this kind of moral isn't surprising. These episodes still frequently end with a Broken Aesop.
The first thing everyone does when it looks like they're locked in is whip out all their cellphones. Alas, there's no signal, but that's more than most mystery characters can say.
After a few people have died, they only move in a large group.
Also this:
Captain Kirk: "There is a good chance someone will be killed! The away team will consist of myself, Mr. Spock, Sulu, and Ensign Ricky." Ensign Ricky: (Looking thoroughly annoyed) "Aah, crap."
Generation Xerox: Possibly. In a Cutaway Gag within Season Three's "Lethal Weapons", Lois reveals that, when she was a child, she was this, big, aggressive, she-ape of a child (who was hideous, despite the Lois we know years later). Fast-forward 27 years later, and we have Meg, whose appearance constantly shifts from homely to borderline monstrous.
George Washington Slept Here: In an attempt to convince a historical society that the Big Fancy House he inherited had $50,000 worth of history occur in it (so he could sell it to them as repayment of a debt), Peter scratched a fake "Jesus Was Here" message on one wall and tried to make it look like the Underground Railroad had passed through it. This was a disaster. Then it turned out that the house had been a presidential brothel frequented by Abraham Lincoln, among others.
Girl of the Week: Any character introduced as a love interest for Meg, Chris, Stewie, or Brian (Jillian being the only subversion).
Giftedly Bad: Brian is this when it comes to being a writer.
Gilligan Cut: Had them in the earlier episodes, not so much now.
"The Cleveland-Loretta Quagmire" parodied the Gilligan Cut in the scene where Peter and Brian catch Loretta having sex with Quagmire. They both agree that telling Cleveland is the last thing they want to do. Cut to later; Peter and Brian have done every other activity in the world and declare that the only thing left to do at this point is to tell Cleveland that Loretta is having an affair.
Peter: Forget it, Death. I'm not going to do your dirty work. There's no way I'm getting on that plane. Absolutely no way, and that's final.
[cut to reveal that Peter is still there] Peter: See? I'm still here. And there's nothing you can say that'll change my mind. Death: Either you kill them, or I kill you.
[cut to reveal Peter on plane]
Good Angel, Bad Angel: Parodied in the first episode "Death Has a Shadow" where the Devil appears on Peter's shoulder and convinces him to go out drinking, but the angel who tells him not to do it never comes because he's stuck in traffic, and again in "Ready, Willing, And Disabled" where the Angel shoots the Devil, then holds Peter at gunpoint and forces him to go over and comfort Joe.
Good Is Not Nice: Nearly everyone on the show that doesn't have outright villainous qualities fits this trope.
Grammar Nazi: Brian can be this at times...especially hwen someone utters the "hw" sound.
Gratuitous German: In "German Guy", the former Nazi commandant's real name is Schlechtnacht--"bad night"--while his fake/cover name is Gutentag--"good day". Also doubles as a Bilingual Bonus.
Great Way to Go: Parodied with a parrot who...did not die well.
Had to Come to Prison to Be a Crook: In the episode "Dial Meg for Murder", Meg falls in love with a convict, and goes to jail for harboring him after he escapes. When she comes out, she is a lot meaner and starts fighting back against everyone who mistreated her. By the end of the episode, Brian has to stop her from robbing a convenience store at gunpoint.
Hands Go Down: When Brian and Stewie are searching for Mort at a Jewish wedding:
Stewie: Uh, excuse me. We're looking for a Mr. Goldman. (Every man raises their hand) Brian: Mr. Mort Goldman. (Half the men lower their hands) Stewie: He's a small business owner. Tends to whine a lot. Kind of a hypochondriac. (The half that lowered their hands raise them again) Stewie: No, no! You can't put your hand back up after you've put it down...You know what, never mind.
Hangover Sensitivity: Peter experiences this in "Death Has a Shadow" after drinking 37 beers. He describes the pain as like accountants cranking adding machines in his head.
Happy Dance: When Peter finds out his father has died, Lois and Brian calmly walk outside and break into a quick victory dance [which stops when Brian grabs Lois's boob and Lois smacks Brian into the trash] before coming back inside to console him.
Parodied in "Fore Father": Peter is spraying the house with a hose, and accidentally breaks Meg's window, which causes her fishtank to break and spill all over her carpet. Meg, who's in her room wearing headphones, notices this and instead of cleaning it up, simply turns her music louder.
Used again, with her happily listening to music and unable to hear Brian testify to court that Meg's real father is a man named Stan Thompson.
He's Back: Evil Stewie as of "The Hand That Rocks the Wheelchair"...possibly.
In "E. Peterbus Unum", Peter mentions that it's his duty to keep the children safe, then laughs because he said "duty". He laughs again because "duty" reminds him of "diarrhea", which he says to Lois to get her to laugh.
In another episode where Brian is replaced by "New Brian", Brian decides to leave after thinking it 'long and hard'. Cue Peter laughing. Subverted afterwards when Lois says "I hope it doesn't be a boner to you.", and Peter doesn't react.
Hero Insurance: Peter and Ernie the Giant Chicken's fights cause rampant property damage through Quahog and the surrounding area, but never have to compensate anyone for it.
Holding Both Sides of the Conversation: Stewie pretends to be a girl in order to get on his favorite TV show, Jolly Farms Revue. When a girl he has a crush on comes over to meet his girl persona, he quickly goes to change into his girl costume while he argues with himself, pretending to be both Stewie and the girl.
In "Lethal Weapons", Peter displays contempt for New York sports teams, and New York in general.
Quahog, Rhode Island is a fictionalization of Boston.
Hollywood Tone Deaf: Stewie when he tried out for American Idol. Ordinarily, he can sing.
Averted with New Brian from "The Man With Two Brians". His singing in a karaoke version of "Summer Nights" from Grease is painful, and he isn't faking.
The ninth season premiere is faithfully done in the form of Agatha Christie-style mystery movies.
There is also a great homage to the first Naked Gun film in the opening to "PTV", in which Stewie infiltrates Afghanistan and opens up a can of whoop-ass on Osama Bin Laden. The scene is also a homage to Yoda's fight scene in Attack of the Clones.
Hug and Comment: Near the end of Season 8 episode "Quagmire's Dad", Glenn hugs his father who has undergone sex reassignment surgery, then an embarrassed exchange implies that Glenn has become aroused.
Family Guy's theme song talks about violence and sex in the media, when the show itself is notorious for being one of the most violent and sex-themed of well-known TV shows.
On two separate occasions, Lois has mocked Brian for dating unintelligent people, whilst being married to someone who is legally retarded.
Another notable example would be "Road to Germany", where Brian remarks that Nazis portrayed Jews in an extremely offensive way. The leaflet that prompted him to say so showed the Nazis' idea of a Jew - namely, Mort Goldman alongside a Star of David.
Out-of-universe example: Brian and Stewie sang a song at the 2007 Emmys about how sad it was that all the shows on television were complete trash. Incidentally, the music was the same as a song on the show about how the FCC is evil for all of its "extreme" censoring.
A third example involves Herbert calling Brian a pervert and ordered him to leave his property after the latter asked him to sign a petition to legalize gay marriage.
When Lois gains weight after Peter stops having sex with her when he got his vasectomy, Peter uses every fat joke and insult on her despite being obese himself.
The biggest hypocritical humor comes from Quagmire's rant on Brian's flaws in "Jerome is the New Black." Quagmire blasts Brian for hitting on Lois after Peter did everything for him, dates a bunch of bimbos while trying to act smart to impress them, and never sees his own child. Quagmire says all this while he flirted with Lois many times, has children he never sees and gave one away, and has sex with lots of women while using his own means to seduce them, although Quagmire admits he dates bimbos just to sleep with them.
Lampshaded and parodied in the episode "The Former Life of Brian". Brian tries to impress a recently-widowed mother (only referred to as "Jared's Mom") by putting on a magic show for her son, only to find out that she already has a boyfriend, Paul:
Paul: ...I'm a great guy! I'm unemployed, but that makes her feel useful in the relationship. Jared's Mom: I'm gonna fix him! Paul: Our relationship will do fine on that basis. Jared's Mom: If he had his life together, I wouldn't be into it. Paul: But I don't! Brian:(exasperated) God, I am so sick of this crap!
I Don't Pay You to Think: In "The Thin White Line," Peter tells a rehab counselor "Yeah, well I don't pay you to think, hot lips, in fact, I don't pay you at all... Count it!"
I Have My Ways: Lois hints at her wily, secretive ways of obtaining a map of her neighbor's house. Cut to a scene of her walking into City Hall and asking for a map.
I Was Quite a Looker: A mild version and not directly stated by the character it's directed at, but in "Meet the Quagmires" Death sends Peter back in time to relive being eighteen again and Brian comes with him. He and Peter are at the country club pool where Peter worked when he was a teen, and Lois walks up:
Idiosyncratic Episode Naming: Played with, then dropped. The original idea was to name every episode with an ominous title, having to do with death or murder -- many of them named after radio programs of the 30's and 40's. This was dropped eventually when the writers realized it was difficult to identify episodes without resorting to the Friends convention of "you know, the one where..."
If I Were a Rich Man: One of the few shows where this tends to be acted on. Repeatedly.
Ignore the Disability: Brian frequently falls victim to this trope, has occurred at least twice with Tom Tucker's son, and multiple times to hide his suggested racial insecurities (a Fawlty Towers Plot occurred from one in "Peter's Got Woods").
Brian: This whole situation has just turned his life upside-down face. (Stewie slowly turns to Brian bewildered)
Cleveland: Oh, no, they're shootin' at us! Peter: Good thing bad guys are such terrible shots. Chasing Officer:(firing every which way) MAN, these guys are elusive!!
"And The Wiener Is" makes fun of this directly with a joke about characters at a shooting range shooting at targets that identify with their character. The joke ends with a Stormtrooper shooting at a Luke Skywalker cut-out and missing every shot.
Implausible Deniability: Lois in front of all the evidence that her brother is a serial killer.
In the Blood: Stewie has his maternal grandfather's limitless cruelty & his father's complete lack of common sense. The perfect recipe for a Diabolical Mastermind.
Inept Talent Show Contestant: In one episode, Peter and Lois form a hippie-esque folk duo, A Handful of Peter, and perform at a talent show. They're so stoned they simply stand there and scream and wail, but in their collective mind's eye they're performing a song called "In God's Eyes We Are All Hot".
Informed Attractiveness: Lois is considered to be one of the hottest women on earth. Her similarity to supposedly super-ugly Meg (sans the glasses and hat) is jarring.
Innocently Insensitive: Peter, even when he isn't trying to be a Jerkass, can sound rather offensive and hurtful by accident. Some of Meg's less directly abusive treatment also leans into this.
Insane Troll Logic: In the episode "No Meals on Wheels" Peter proves that (in his words) "cripples aren't cool". His favorite actor, Mark Harmon, doesn't need a wheelchair. Mark Harmon is cool. Therefore people who need wheelchairs aren't cool and shouldn't be allowed in his restaurant.
Insufferable Genius: Subverted in "Petarded"; Peter wins at Trivial Pursuit and becomes a condescending jerk who thinks he's smarter than everybody and rubs it in their faces. The catch is, all his questions were deliberately chosen from the pre-school category and it turns out he's mentally retarded.
Lauren Conrad not only turns out to be a closeted super-genius, she corrects everyone.
Interdimensional Travel Device: Stewie invents a remote control that can travel to many universes, including one where Meg is hot, but still ugly compared to everyone else.
The Internet Is for Porn: Surprisingly, Quagmire had no idea you could get porn off the Internet until someone told him in a 2009 episode. The next time we see him, his left arm is swollen to Popeye-like proportions. (Who knew that Quagmire was left-handed?)
Brian had many human girlfriends, and it's implied that he had sex with almost all of them. The most prominent examples are Jillian (his only girlfriend for more than one chapter) and Lois (Brian's love for Lois is a recurring gag; they were also married for over a year in the episode "The Perfect Castaway", and Lois mentioned at the end that if Peter hadn't come back she would have finally had sex with Brian).
Brian's cousin Jasper. Yes, one of the only gay characters in Family Guy is a dog (at least they decided to cut out a scene that implied he was going to rape his husband).
Iron Butt Monkey: The entire family. Ironically, Meg, the series' regular Butt Monkey, gets the least physical abuse.
Irony: Seth MacFarlane using his natural voice for a non-human character, while using different voices for human characters.
Listen to the line in the opening theme where Peter and Lois mention their distaste for violence in movies and sex on TV, then watch any random episode. And then Peter's line, "where are those good old family values on which we used to rely?" Well you won't find them in this show, that's for sure.
The episode taking place during a hurricane as part of a multiplayer theme night where The Cleveland Show and American Dad also took place in said hurricane. All 3 were meant to air in May but were all postponed due to a severe storm that killed 300 people. When did they eventually air? On October 2nd, at the tail end of hurricane season.
It Only Works Once: Averted with James Woods, who ends up being into a trap using candy twice. Peter himself (of all people) lampshades this, and notes that they should remember this weakness for the future.
