Do you recognize this from E.T. The Extraterrestrial? It's Elliot and another kid trading insults at a bus stop. There all kinds of versions out there of what people think the other kid said and what it means. One is "Sinnus Supremus" supposedly being Latin for Big Nothing or something like that (although an online Latin to English translator does not corroborate this). Any ideas? I'm anxious to nerd out over this before I watch E.T. again for the millionth time!