The phrase comes from Brazilian internet slang, where corno is widely used as a teasing insult linked to infidelity, and estourado describes audio pushed so loud it distorts. No single original recording is clearly credited, so the clip spread mainly as a shared WhatsApp and short video sound rather than from a film or show. Its popularity relies on that shared cultural joke and on the blown out mix, which makes even a phone speaker sound like an emergency broadcast, keeping it in rotation for reaction edits and friendship group pranks.