Profound Moments in Left 4 Dead 2/Funny

Puppysky's guide to surviving the zombie apocalypse: either be fat or be one of the guys that survives because he has no friends (gets incapped by a witch) OH FUCK!
This never fails to make this troper laugh.

Archaon: Oh my god, it's Jimmy Gibbs Jnr! AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH!!!!!!!!!

Djy1990 being run off the building by a charger that dies at the same time he does.

Djy1990: The fuck was that?! What the fuck was that?!

Going from memory here, but Episode 10 has a brilliant anti-tank tactic by Bro.

Bro: OH GOD IT'S A TANK! MAYBE IT'LL IGNORE US IF WE SIT DOWN AND HAVE A LOVELY DINNER!

Cut to Djy and Bro sat at a nearby table as the screen shakes violently*

Djy: Don't make eye contact!

During the Dark Carnival finale, Tic Tac fires a grenade into a huge stack of fireworks, causing a brilliant light and sound show

Aovnick: AAHHHH, WHY IS IT SO LOUD?!

- The next time they did it, David jumped in and it sapped his incap health in 4 seconds
This one manages to do quite nicely.

Bro.: What's the weight limit on this thing?
Mastermind: IT'S FIVE HUNDRED BLACK, GET IN.

Another one

Djy: Oh my god, BILL is DEAD, AAAAAAAAAAAAAAAAAAAAAAAAAAA...
Mastermind: Whas goin IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII...
Bro: OH MY GOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO...

Everyone stops to stare at Archaon walking in, who's been absent for the last two seasons up to this point.*

Archaon: AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...

Everyone else continues screaming as the screen is clouded with text.*

- Made funnier by the fact that he's playing Coach and Bro is standing right next to him.
- Made even more funnier by the fact AOVNICK is the only one that isn't screaming during the moment.
- During the continued screaming Djy starts randomly unloading his gun on Coach.
An oddly amusing one

Your horrible singing attracted the horrible zombies!

The entire song singing part in season 2.

David: Just go, just ignore every sou- all the sounds- song- sounds- sounds (blows on mic)
Puppy Sky: (singing) Let's groove tonight/share the space-shsh-FUCK!

PRO GUN EXPERT
At the end of episode 2, when Djy's teammates keep him from getting in the safe room. Aovnick, who is also locked out, hits a shopping cart with an axe, causing it to hit Archaon and incapping him.

Shopping Cart=BESTIES

Do you know the sound a bird makes? A-BI-BI-BI-BI-BI-BI-BI-BI-BI-BI-BI
Bro thinks he only has a pistol and gets swarmed by the horde. Falling down, it's pointed out that he had a molotov the whole time
Aovnick's surprise appearance in Profound Moments In Left 4 Dead 2 19 probably counts

Aovnick: HEY DAVID! I can't really land there right now because theres a bunch zombies and CABLES. Also even if I could land PUPPY'S TOO FAT! So why don't you go over to the hospital and get him some lipo-o-ssssuction. Okay by now there DAVID.

Puppyskys repeated screaming in episode 16.
- made even better that there is a warning before each one.
"Hi, my name is [name],hurrrrrr." Especially with the ridiculous face that always accompanies it.
In the No Mercy finale:

PuppySky: I'm black and white!
djy1991: (begins shooting at him) Not anymore you're not!
PuppySky: No! (he dies)
djy1991: Oh shit, that actually killed you.
PsychoDuck: What did you expect?
djy1991: (laughing) I didn't know...!
PsychoDuck: "I was only shooting at him, Officer, I didn't think he would die!"

In one episode, David is attacked by a Charger. We see the attack in slow motion, with David having an Oh Crap moment.

djy1991: Oooooooohhhh Jeeeeeessuuuuusss Chriiiiiiiiisssttt!

Let's face it, if you didn't nearly blow out a lung laughing at least once every episode, you were watching the wrong show.