This audio comes from Persona 5, the 2016 role-playing game by Atlus, where the lyric appears in the battle theme "Last Surprise." Online, the line escaped the game and became a recognizable reaction sound for surprise reveals, fake-outs and sudden reversals. It spread through gaming videos, anime-style edits and short meme clips because the phrase itself explains the joke while the music gives the moment extra style. Its staying power comes from being instantly recognizable to players without needing a long setup.