1 definition by ObiMomKenobi13

Top Definition
1. noun: A 'know-it-all' who actually does know it all. They have a mind filled with trivia on almost every subject. This term comes from a character on 'Cheers', Cliff Clavin, played by John Ratzenberger.

2. verb: The act of injecting unnecessary, but true, facts into a conversation.
1. noun: "When it comes to knowing random facts, you are such a Clavin."

2. verb: "You don't have to Clavin everything I say."
by ObiMomKenobi13 May 03, 2013
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