The sound comes from the 2005 World of Warcraft video featuring Leeroy Jenkins, a player character who returns during a raid plan in Upper Blackrock Spire and rushes the enemies while shouting his own name. The clip spread widely in early internet gaming culture and moved into forums, videos and mainstream references far beyond the game. Its time's up line became shorthand for abandoning preparation and acting immediately. It remains popular because the moment is simple, recognizable and easy to reuse whenever patience runs out.