ass-crack-tastic 

A fantastic look at any plump/fat chick's ass crack over the top of her low rise jeans.

Baby, your back got that ass-crack-tastic look down tight!

ass-crack-tastic by pfc. Snowball March 1, 2009

ass-crack of dawn

really early in the morning.

I had a flight to catch, so I had to wake up at the ass-crack of dawn.

ass-crack of dawn by kristiealexis January 13, 2008

Ass Crack 

1) The vertical line dividing the left and right ass cheeks.
2) Crack, and cocaine variants, that were at any point, up someone's ass.

1) The morbidly obese man's ass crack was showing. All of the children saw it.
2) Junkie: Hey, wanna smoke this crack with me?
Bum: Nah, nigga, that crack is ass crack.

Ass Crack by DumbCumBumWhoPissesAndShitsRum April 12, 2017

Ass Crack Fever 

Catching a nasty STD from anal sex. Usually from a filthy whore or or prostitute.

What is it doc? I feel horrible and I think my cock is going to rot off.

Have you had anal?
Yes.

Was he or she clean?
No. She was a street walker and gave it up for $5 so I had to clap them cheeks. Wouldn’t you?
Ummmm. No. That’s nasty. You have the ass crack fever. Here is a script now go soak your penis in bleach.

Ass Crack Fever by Dick Onchin August 26, 2020

ass crack 

The split between someone's ass cheeks.

Look at the size of that guys ass crack! It runs halfway up his back

ass crack by Big Bad Bastard November 14, 2002

ass crack butterfly 

When you stick you dick parallel to the cornhole of a girl and slide up and down her ass crack, thus, making your dick look like the thorax and the cheeks looking like the wings.

Zach said he wouldn't mind give Raggity an ass crack butterfly, I wouldn't mind, either.

ass crack butterfly by Sphinctar October 5, 2004

Ass Crack Lane 

When you can see someone's butt crack and look directly into it.

DOOD1: Man look over there

DOOD2: Man that is Gross

DOOD3: What happened?

DOOD2: I just went down ass crack lane :|

Ass Crack Lane by MRUnpossible June 7, 2009