Deltarune is the episodic role-playing game by Toby Fox, creator of Undertale, with its first chapter released in 2018. Small Jackenstein is one of its small, pumpkin-headed enemies, and this laugh is taken from its in-game encounter. Fans began sharing short Deltarune clips on YouTube, TikTok and Discord soon after release, and distinctive enemy sounds became shorthand for the game's quirky, dark humour. The laugh endures because it is instantly recognisable to players, easy to drop into edits, and captures Deltarune's blend of cute design and unsettling charm in under two seconds.