It comes from Disney's The Jungle Book, where Baloo the bear tickles King Louie the orangutan king, sending him into a long fit of laughter during their musical scene together. The moment has lived on far beyond the 1967 film because the laughter is instantly recognisable and works without any dialogue or context. Online, creators lift the clip for tickling gags, cartoon edits and Among Us-style jokes, where a character squirming and laughing tells the whole joke in seconds.