Happy Tree Friends began as an internet animated series in the late 1990s, built around cute animal characters whose cheerful adventures regularly ended in sudden, graphic accidents. Giggles, the friendly pink chipmunk, became one of its most recognisable faces, and her screams became shorthand for that abrupt switch from sweet to chaotic. As short clips from the show spread across YouTube, TikTok and meme edits, the scream was lifted out of its original scene and reused on its own. It endures because it instantly reads as cartoon panic, even to viewers who have never watched the series.