The chant comes from Dio Brando, the villain of JoJo's Bizarre Adventure, who shouts 'muda', the Japanese word for useless, repeatedly while unleashing a barrage of attacks with his Stand, The World. Fans clipped the rapid-fire delivery from the Stardust Crusaders arc and shared it across YouTube, TikTok and soundboards, where its rhythmic arrogance made it instantly reusable. It remains popular because the word needs no translation to land, working as a shorthand for dismissing an opponent, hyping a victory or mocking a failed attempt in almost any edit.