The line comes from The Dark Knight in 2008, where Heath Ledger's Joker says it to a room of Gotham crime bosses before making a pencil disappear in his infamous magic trick scene. The moment became one of the film's most quoted scenes because of its dark humour and sudden violence. Years later, editors and meme creators began lifting the short audio as a setup cue for reveals, pranks and twists on video platforms. It endures because the calm delivery instantly signals that something unsettling is about to happen.