Top Definition
The split between someone's ass cheeks.
Look at the size of that guys ass crack! It runs halfway up his back
by Big Bad Bastard November 14, 2002

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when a girl wares her paints to damn low and you can see the "V" that is made where the two butt checks come together.
Britney Speares has way to much asscrack
by Jane Doe December 14, 2003

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something you should not fall into
jimmy fell into his mom's ass crack and got stuck
by fluffypenis September 20, 2014

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the line on your ass that gets erased after sitting down for long periods of time.
I better take a marker to re-draw my asscrack because it will be gone after sitting in the plane that long
by Frank Bertossi August 19, 2005

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A dirty, despicable human being, that serves no purpose in life. Only there to annoy the shit out of you.
-Damn, I'm so tired of Denise bothering me.
-Yeah, that girl is such an asscrack.
by Superstar88 March 08, 2008

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A person who is not quite an asshole, but well on their way.
Steve gave me a back handed compliment. That guy is such an asscrack!
by missikat November 29, 2008

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can be used to indicate the time of day being excruciatingly early.
You going out tonight, Bill?

Nah man, I had to be up at the asscrack of dawn this morning.
by 556boyer June 04, 2011

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

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