A dick that's been up an asshole. However, it is also used as an insult. It's like calling someone a dick, but worse, because it's been up an asshole. Pronounced doo - barsh
Jane: I don't really like Mike...
Susie: Yeah, he's such a dubarche!

(Bully pushes kid into locker)
Kid: Dubarche!
by james kevin smith September 28, 2007
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