Sweet Tooth is the deranged clown villain of Sony's Twisted Metal vehicular combat games, first released in 1995, where he drives a weaponised ice cream truck and torments other drivers. His manic laugh became shorthand for his unhinged personality and is instantly recognisable to PlayStation players who grew up with the series. Clips of the laugh later spread through gaming videos, reaction edits and horror memes, where it is reused far beyond its original game. It endures because a single chuckle conveys menace, madness and dark comedy at once.