butt cleavage 

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!

Wow, did you see the butt cleavage on her dude!

butt cleavage by Jeff Gawrys October 29, 2003

butt cleavage 

1. to make the butt cheeks purse together 2. to situate onesefl so that surplus butt pops over the top of one's pants

When a girl with a big butt sits on a barstool with her thong all "accidentally" hanging out.

butt cleavage by Amber January 18, 2004

Butt Cleavage 

That space between your butt and your thigh that is not a butt nor your thigh.
(Right under underwear line)

Omg! He totally touched my butt cleavage

Butt Cleavage by TheSceneKids December 9, 2015

butt cleavage 

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!

butt cleavage by SwimmChick247 December 6, 2010

Butt cleavage dress

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.

Kathy looks hot in that but butt cleavage dress.

Butt cleavage dress by Deep blue 2012 November 14, 2009

cleavage of the butt 

Synonym of buttock cleavage

Check out that HB8.5's cleavage of the butt

cleavage of the butt by Mystery from the Pickup Artist January 5, 2009