Pennywise is the clown form of the creature in Stephen King's 1986 novel It, first widely known from the 1990 television adaptation and then again from the 2017 film and its 2019 sequel. The character's childlike giggle became part of his screen identity, contrasting a circus clown's playfulness with a predator's threat. Short clips of the laugh spread through horror edits, meme pages and soundboards during the renewed interest around the films, and it remains a quick audio shorthand for a creepy clown, a hidden danger or a joke turning sinister.