Faustão, whose real name is Fausto Silva, became one of Brazil's most recognisable television presenters through his long-running Sunday programme Domingão do Faustão. During its game and quiz segments, he would call out errou whenever a contestant gave an incorrect answer, turning the word into a familiar part of Brazilian pop culture. Clips of the moment later circulated as short reaction sounds on soundboards, social media and messaging apps, where Portuguese-speaking creators reuse it to flag errors quickly. Its brevity and instantly recognisable delivery keep it useful long after the original broadcasts.