The sound comes from Among Us, the social deduction game by InnerSloth that became a worldwide hit in 2020, where imposters secretly eliminate crewmates while the rest try to work out who is lying. The kill audio became instantly recognisable as clips of gameplay, streams and edited betrayal moments flooded TikTok, YouTube and Discord during that surge. It is still used today because it needs no explanation for anyone who played the game, and it turns a simple cut, reveal or elimination into an instantly understood joke about trust and deception.