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1.
when the top part of a person's buttocks and ass crack is showing
person 1: Pull up your pants.
person 2: What?
person 1: Um, ass cleavage...
person 2: Noooooooo!
Por proudfangirl 07 de febrero de 2006
 
2.
what some girls with a big ass have, especially when their shirt is too short and their pants are too tight

many men find this extremely attractive
damn did you see kristina's ass on christmas? it was flat but you could see under her shirt and there was like, this chasm. where did it come from?

yeah I know man, that was some serious ass cleavage! I wish I could meet her ass in person
Por bill mesich 16 de enero de 2007
 
3.
o.k.! ass cleavage is defined by how deep a girls ass crack is set within her gluteous muscles. in other words if you took a ruler and stuck it in between a girls ass muscles till it stops at her crack you would have an ass cleavage measurement. how deep a womans ass crack measurement yeilds, is what is known as ass cleavage! ass cleavage is a phrase normally utilized with girls who are very athletically built!
georgia peach, luscious lopez, sophie dee, mayara rodriguez, naomi, velicity von, gianna michaels, ricki white, destiny, sophie castello, candi summers, kristi lynn (God rest her soul), shanna mccullough, are all great examples of ass cleavage! all of these athletes possess exceptional ass cleavage characteristic of deep ass cracks!
Por sleepy head t 19 de marzo de 2007
 
4.
massive gadunk adunk that resembles big bodacious tatas.
Shit yo! Look at Keith's ass cleavage! DAYAM! Dat shit can swallow a monkey!
Por FupaTroopa 14 de julio de 2003
 
5.
The act of a girl wearing a bikini bottom that is too small. So small to the point that her butt cheeks get pushed together and there is not enough material to cover the top of her butt thus creating ass cleavage.
Wow look at the ass cleavage on her.
Por cali bred22 27 de julio de 2008