This laugh comes from the Joker's appearance in the 2016 film Suicide Squad, in which Jared Leto took on the role of the DC villain. Leto's version leaned into a theatrical, high-pitched cackle that stood apart from earlier screen Jokers, and short clips of it were quickly shared on soundboards and video edits. It remains popular because the laugh is instantly recognisable even without a visual, making it a shorthand for madness, mockery and dark humour in memes, gaming montages and reaction videos.