The Joker has been Batman's most famous enemy since his first comic appearance in 1940, and his laugh has become one of the character's defining traits across comics, films, animated series and games. Because the laugh needs no dialogue or context, short clips of it spread easily through soundboards, meme pages and video edits, where it is reused as shorthand for chaos, scheming and dark humour. Its staying power comes from that instant recognition: even a two-second burst tells viewers exactly what kind of character, or twist, they are dealing with.