crack of ass 

what people say instead of "at the crack of dawn" to try and be funny.

"Mann It's soo late! I gotta wake up at the crack of ass tomorrow!"

crack of ass by LMLYM7 July 7, 2008

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 OF NO WHERE 

Middle of no place un able to be seen on a map off the beaten path

Dex you live in the ass crack of no where ... haha i know FARr

ASS CRACK OF NO WHERE by FARR February 19, 2005

ass crack of the bed

the space between the wall and the bed that you get stuck in when you roll over too far

"OMG you guys, last night you shoved me into the ass crack of the bed."

"Eff you broke the outlet."

ass crack of the bed by Andee Pitzz December 19, 2008

Ass Crack of Dog 

When your dog wakes you up at 5:00 AM with his butt in your face.

I'm exhausted still after having woken up at the ass crack of dog... At least I had plenty of time to shower.

Ass Crack of Dog by saffirepulse July 8, 2018

crack ass of dawn 

The early morning light of day. Too early to wake up especially after an all nighter.

the guy next door decided to mow his lawn at the crack ass of dawn, doesn't he know its Sunday?

crack ass of dawn by ravenlocks July 1, 2009

ass crack of dawn 

Redonkulously early in the morning. Often it is still dark out. Commonly used when one must wake up early after a night of drinking, or getting up to go on a trip. Also can be referred to "Oh dark hundred"

Person 1: "Dude, what time do we have to get up tomorrow?"
Person 2: "The freaking ass crack of dawn."

ass crack of dawn by K.Spence June 11, 2006