Tekken 5 is the 2004 arcade fighting game from Namco, later released on PlayStation 2, and part of the long-running Tekken series. Jack refers to the line of android fighters in the roster, with Jack-5 appearing in this entry. The announcer naming the defeated character before calling K.O. is a standard part of its round endings. Clips of those calls were later ripped and shared on soundboards, where this one became a reusable punchline for any sudden, decisive defeat outside the game.