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
C'mon girl, work that dadonkadonk! (which should be badonkadonk)
by Homosapient July 17, 2011
It's the junk in your trunk man. It's what you put your mug on and saddle up and ride. It's an ass. You guys are dumbasses, it isn't dadonkadonk, it is badonkadonk.
Yo man, her badonkadonk is fuckin' nice man, I just wanna ram her!
by Josh March 22, 2004
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