The line belongs to Terry Bogard, the SNK fighting game hero from Fatal Fury and The King of Fighters, and Buster Wolf is his signature rushing super move. The taunt became closely linked to Terry because he says it just before the attack, turning a gameplay moment into a character catchphrase. As fighting game clips spread on YouTube, TikTok and soundboards, fans began using the exchange on its own as a joke about checking on an opponent after a hit. Its staying power comes from that clear setup and payoff, even for viewers who have never played the games.