Nelson Muntz is the school bully in The Simpsons, and his short mocking Ha ha became one of the show's most recognisable catchphrases. Fans clipped the laugh for reaction videos and meme edits, where it quickly became shorthand for pointing and laughing at someone's misfortune. Its spread was helped by soundboards and short-form video, where a two-second clip can land a joke without any explanation. Decades later it is still used because the reference is instantly understood, even by viewers who have never watched a full episode.