Abomination Accusation Attack

Accusing someone of being some kind of monstrous predator - sexual or otherwise - can be a really efficient weapon. It can make people hate the accusee, maybe even get him to hate himself. Or, simply use it as a particularly nasty Chewbacca Defense to shut him up.

Don't bother to do a Frame-Up: False evidence can be disproved, false testimony can be questioned. Instead, just go for the lower instinct, make people so afraid that they dare not disregard the accusation. What if it's true; we can't really take that risk, can we? After all, there's no smoke without fire, so let's just bring out the Torches and Pitchforks and start the big Paedo Hunt or whatever. This can be done against individuals as well as groups. Supertrope of All Gays Are Pedophiles. When an AAA is honest, it's often caused by Aggressive Categorism or Black and White Insanity. Don't be surprised if these people resort to Activist Fundamentalist Antics.

Please note that false accusations of actual rape or child sexual abuse is Frame-Up rather than this trope. Same goes for non-sexual examples, such as accusing someone of eating children in a literal non-metaphorical way: It's this trope if the accusation is that he will eat your children, or has eaten children in general. If it's trying to pin the disappearance of the local missing kid on him, then it's Frame-Up instead. Of course, honest & sane accusations have nothing at all to do with this trope: Just like Frame-Up, it's entirely about the malicious kind.

Compare Godwin's Law for similar accusations of being a Nazi, and Hitler Ate Sugar for a method often used in both kinds of accusations. If used consistently, this trope becomes a form of Demonization.

Comic Books

 * In the first issue of Lucifer, a young woman gets angry with the protagonist when he doesn't stop her from touching some wet paint, explaining only afterwards that it's actually blood. In retaliation, she threaten to call the cops and claim that he's a pedophile who has kidnapped her.

Film

 * In a Red Skelton movie he is fooled into thinking that carnival barker/huckster Walter Slezak is a psychiatrist. When he spots Slezak making his spiel he slowwwwwly begins to put it together. Before Skelton can say anything Slezak points at him and yells "Arrest that man. He insulted the American flag." Cops immediately grab Skelton and drag his off as he protests that he never did that.

Newspapers

 * One activist who got an essay published in a Swedish newspaper argued the point that all white men who are in relationships with Asian women are actually pedophiles. Because Asians are smaller then western women, or something like that. The author was, of course, a male Asian. And he later got arrested for stalking and arson against his (white) Swedish ex-girlfriend. Classy.

Web Comics

 * In Exiern, Tiffany despises Theresa, among other things because Theresa is happy with having been magically turned into a woman. In one very public argument, with the population of Theresa's home city as audience, Tiffany talks as if it was a fact and common knowledge that Theresa is a Pedophile Priest child-molester. Of course, this smear has no basis other than Tiffany's own malice - and she eventually realizes what a bitch she has been.
 * Single Asian Female (written by a single Asian male) spreads the message that if a white man shows interest in an adult Asian woman, it means he's actually a pedophile.

Web Original

 * Not Always Right has one episode with a woman going totally overboard with this trope as she visits the movies and decides that she owns the place and has the right to deny random strangers the seats they have bought, all in the name of Think of the Children - accusing two random young women of being potential child molesters and thus disqualified from being treated with basic human respect.
 * At least one IRC chat channel, probably many, used to have as its policy to publish a little message to everyone in the channel every time a banned person tried to enter the channel and get auto-kicked: a message explaining that the user is a pedophile and that such people are not welcome here - and this procedure applied to everyone, no matter why they were banned. People could get banned for things such as being AFK when an admin wanted to chat, and would invariably be casually branded "pedophile" for it.
 * Zinnia Jones used this trope for satire in the episode Conservative Christians Are Rapists And Pedophiles.
 * This is the tactic employed by the adminstration of The Other Tropes Wiki against anyone who disagreed with the censorship regime they imposed in middle-to-late 2012.

Western Animation

 * In Monkey Dust, the Paedofinder General is universally feared for his ability to call anyone a paedophile (and then get the randomly accused person killed.) For example, he kills the fiddler in Fiddler On the Roof for fiddling on the roof, implying that it must be an euphemism for paedophilia.
 * In Beauty and The Beast, Gaston doesn't believe that the Beast even exists. When Belle proves him wrong, he changes his position to accusing him of eating children - never mind that the beast has been around for a long time and the only person who had been missing was Belle herself! Or that the villagers believed Gaston over Belle despite that Gaston was proven wrong immediately beforehand.

Real Life

 * Blood libel is the term for the practice of accusing social, ethnic, or religious groups of ritualistic crimes such as cannibalism, human sacrifice, or well poisoning.