The epitome of a douche. You know those people who are generally so retarded that you just want to have a 1000 pound hand so you can crush their face over and over again.
Unknown A: "dude what're you scared?"
Unknown B: "I just owned you?"
Unknown A: "yeah you're scared"
Unknown B: "lawl fuckin' douchebagasaurus"
by CheekyMoore January 8, 2008
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A complete douchebag, like such a big douchebag, that it's like fucking dinosaur huge.
Phil: Chris is kind of a douchebag, but he's can be cool sometimes.
Mike: No, he's not cool, he's a Douchebagasaurus Rex.
by BrotherSport April 4, 2009
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