The Joker is the Batman villain from DC Comics, and his high, manic laugh has become one of his most recognisable traits across comics, films, television and games. Short clips of the laugh began circulating as a meme sound because it instantly signals madness, mockery and chaos without any words. Extended versions like this one, lasting just over ten seconds, became popular on soundboards and in video edits, where creators use the longer build to stretch a joke or a dramatic reveal. Its staying power comes from that instant recognition.