The phrase comes from Dragon Ball FighterZ, the 2018 fighting game based on the Dragon Ball series, where Super Baby 2 appears as a playable fighter. Baby is the parasitic villain from Dragon Ball GT who takes over Vegeta, and his second transformed form is known in the game as Super Baby 2. Short voice lines like this one spread through fighting game clips, versus edits and Dragon Ball fan videos, where a single taunt can close out a match. It stays popular because it is instantly recognisable to fans and works as a clean, villainous sign-off.