The line comes from the German dub of The Dark Knight from 2008, the Batman film where Heath Ledger played the Joker to wide acclaim. In the film the Joker presents himself as an agent of chaos who thrives on upsetting Gotham's order, and that idea became the core of the character's popularity online. The short German phrasing turned the moment into a compact soundboard clip, easy to quote and reuse. It survives because it sums up a famous villain in one line and fits any scene built around gleeful disorder.