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1 definition by Denithor

Basically the definition is person who has a very sexy/or very huge ass. It also seems to refer somewhat to the way this person walks or carries themselves.
"Damn, with a bdonkadonk like that, she could make a monk cum in his pants."

"That girl/guy has some bdonkadonk goin' on in those pants."
by Denithor September 16, 2008