1 definition by The Ceps

A person making a very specific prediction - that something you do (such as telling a joke or performing physical comedy) will make your friend(s) spew beverage from their nostrils from laughing.
Friend: Lifts a beer bottle to his mouth.
You: Rip One.
Friend: Becomes a beer fountain, from the nose.
You: "I knew that would happen. Call me Nostril-damus."
by The Ceps February 4, 2010
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