Chucky first appeared as the possessed Good Guy doll in Child's Play, the 1988 horror film that turned a children's toy into a killer, and the character has returned in sequels and a television series since then. His high, taunting voice and laugh became instantly recognisable, which helped short clips of him spread across soundboards, reaction videos and Halloween edits. The sound still works because it carries decades of horror recognition in just a few seconds, making it an easy shorthand for something cute turning dangerous.