The phrase comes from JoJo's Bizarre Adventure, where Dio Brando shouts muda, Japanese for useless, again and again while his Stand unleashes a rapid series of blows. Fans clipped the chant from the anime and turned it into a shorthand for total domination, pairing it with fight scenes, gaming clips and overpowered characters. Its rhythm makes it instantly recognisable even to viewers who have never seen the show, and that combination of anime fandom, repetition and aggression has kept it circulating in memes and edits for years.