The space between the cheeks of your butt,when the cheeks are squeezed together. Particularily sexy when a female is wearing ultra low rise jeans, and exposes just a little of it!
by Jeff Gawrys October 29, 2003
1. to make the butt cheeks purse together 2. to situate onesefl so that surplus butt pops over the top of one's pants
by Amber January 19, 2004
When you can see the top of a male swimmer's butt crack because his speedo is too small or too tight. Can be sexy on hot college swimmers.
-Joe needs a bigger suit, he has major butt cleavage.
Girl: Ooh, check out that swimmer!
Girl 2: Wow yeah, he has hotttt butt cleavage!
Girl: Ooh, check out that swimmer!
Girl 2: Wow yeah, he has hotttt butt cleavage!
by SwimmChick247 December 6, 2010
That space between your butt and your thigh that is not a butt nor your thigh.
(Right under underwear line)
(Right under underwear line)
by TheSceneKids October 17, 2015
A dress that is cut so far down the back that it form cleaves where a woman's butt starts and makes it look like tit cleavage.
by Deep blue 2012 November 14, 2009