The clip features Fausto Silva, better known as Faustao, the longtime Brazilian television presenter famous for loud, energetic audience segments and game-show moments. Errou is Portuguese for wrong, and his exaggerated delivery turned a routine correction into a reusable reaction sound. Shared widely on Brazilian soundboards and social media, it became shorthand for instantly flagging a bad answer, especially in quiz, trivia and geography jokes. Its brevity, clear meaning and familiar voice keep it useful for Portuguese-speaking creators and for anyone making a quick wrong-answer gag.