Directed to someone who is acting out of control or acts like they are on drugs
by Nix & BL June 21, 2001
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1. The actions/words you just displayed are unbelievable!

2. You're not your normal self, Jim.
Why are you laughing so much? Are you on crack?
OR
Stop vomitting... are you on crack?
by fallacy October 30, 2001
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when someone says something that doesn't make sense or is just stupid, you say YOU ON CRACK to show how stupid they sound
"hey dude, did you know that April is fleeting?"

"........YOU ON CRACK!"
by ZXAD December 23, 2008
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When someone says something that is either unbelievable or utterly foolish and stupid.
Giraffe: Im not a retard. D&S: Are you on Crack?
by blazer275 February 7, 2011
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To rack the balls before the start of a pool game.
Before the start of a game of pool, Biff Lambert always says , "you rack em, i crack em."
by Donald Cowboy Cerrone February 7, 2018
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Indicates a person that completely and totally screws everything up all the time.
You dropped the brewskies on the way in to the partay? the best part of you dribbled down the crack of your mother's ass.
by no can clammupah April 17, 2006
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