Somebody who posts their name on UrbanDictionary, boasting (lying) about them being awesome, cool, etc.
Guy 1: Dude, I just added my name as a word on UrbanDictionary!
Guy 2: Really? What did you put for the definition?
Guy 1: I said that I am the coolest person at school and I get all the girls! Man, I'm so cool!
Guy 2: I can't believe I am friends with an Urban-Boaster.
by AwfulDarkJedi October 20, 2009
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