The line comes from the Brazilian dub of El Chavo del Ocho, known in Brazil as Chaves, the Mexican sitcom created by Roberto Gómez Bolaños and broadcast there from the 1980s. In the school scenes, Professor Girafales tests the children and a bad answer from Chavo draws the mocking reply from Chiquinha. Clipped from television reruns, the phrase spread through Brazilian social media, WhatsApp groups and soundboards as a ready made grade for any foolish answer, and its classroom wording keeps it instantly recognisable decades later.