Rapeocaust Share definition Flag Verb.Rape-O-Caust- An action or an event that is so vial and disgusting that rape doesn't begin to approach how awful something was. Beth went through a total rapeocaust when she was attacked by Ronald McDonald and Grimace Rapeocaust by KomradeX August 25, 2009 0 0 Get merch Get the Rapeocaust mug. Buy Now — $32.95 See more merch