The phrase comes from Fist of the North Star, where martial artist Kenshiro tells an opponent, “You are already dead,” after delivering a fatal technique. The manga began in 1983, followed by a television anime adaptation in 1984. Online, the scene became widely recognizable through edits pairing Kenshiro’s warning with an opponent’s startled “Nani?” and a sudden explosion. Its simple setup, dramatic pause, and immediate reversal keep it useful for anime memes, gaming clips, reaction videos, and remixes.