The Joker, the Batman villain created for DC Comics in 1940, has used a distinctive laugh as part of his character for decades across comics, animation and film, making it one of the most recognisable villain sounds in popular culture. Online, short clips of that laugh spread through meme pages, reaction videos and short-form edits, where creators reuse it as shorthand for madness, mischief or a joke turning dark. Its brevity makes it easy to drop into almost any clip, and audiences recognise it instantly without needing context, so it remains a staple for pranks and villain edits.