Quote from Kelso in The Battle of Evermore
Hyde: You're talking about him like he's gone, man. He would have told me if he was leaving town. Kelso: Maybe a U.F.O. appeared. And it shot down a beam and made everyone and everything inside the Fotohut vanish. Yeah, like an apparition. Hyde: Kelso, you don't even know what an apparition is. Kelso: Hey, if I can't use words I don't understand this is gonna be one quiet afternoon.