Street Fighter II, developed by Capcom, launched in arcades in 1991 and became one of the most influential fighting games ever made. Its round-ending KO call became instantly recognisable to arcade players, who heard it after every decisive finish. As clips from the game spread through online videos, streams, and meme edits, the short call was lifted out of its original context and reused as a universal signal for defeat. It remains popular because it is short, unmistakable, and instantly understood by anyone who grew up with arcade fighting games.