a butt that when it moves up goes dadonk and on the way down it goes adonk.
I love the dadonkadonk butt.
by Vince January 06, 2003
C'mon girl, work that dadonkadonk! (which should be badonkadonk)
by Homosapient July 17, 2011
An ass that protrudes out from the back and makes a ledge; one that bobs back and forth while a large girl walks; looks like two sacks of patatoes.
"I rested my mug on her dadonk-a-donk while I went for a ride."
by mysteryjahonous July 20, 2005