one who inhales beef at a pace that is discredible to say the least, and also wholly and repulsively inherent to all that resembles fiendish dick and whomp-like nutburgers.
Denny: Who the fuck is that over there?

Ykoza: That's dahoo, he ate way to much cock tonight.
by the yids February 28, 2008
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The most bad-ass thing you can ever say, ever.

Originates from the movie "How the Grinch Stole Christmas", where the Whos sing this glorious anthem throughout the land in praise of Christmas.
ex. 1: Dahoo Doris, Dahoo Doris, Dahoo Dahoo Dahoo Doris!

ex 2: Oh, Dahoo Doris yo! That bitch is sexy!
by MeowMeowKittyKat February 2, 2010
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