The phrase comes from Fausto Silva, known as Faustao, the longtime host of the Brazilian variety show Domingao do Faustao on Globo. His exaggerated catchphrase oloco meu became part of everyday Brazilian slang for amazement long before short video editing took off. Clips of the line later circulated as meme sounds on soundboards, in WhatsApp groups and across social media, where the spelling often drops the accents and spacing. It remains popular because Brazilians recognise the delivery instantly, and non Portuguese speakers still understand the shocked energy behind it.