noun.

The opening at the lower end of the alimentary canal through which solid waste is eliminated from the body.
My DoctaBu is sore from last night.
by Mr. Dassbaba March 23, 2005
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The tightest scratcher in all the land! He is totally l337 with the homies.
From the D to the R to the B to the U that's DoctaBu to you!
by Magic December 10, 2003
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