To shit a quantity of shit that is equal to the size of your ass.
by Jugarn Jax May 31, 2005
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v. - This phrase can be used in almost any situation, ranging from extreme disgust in one's self, to having a high chlorine level in a pool, or to having a very eldery motorist slowing down traffic ahead. This phrase can be used in a sentence all by itself, or it can be said right in the middle of other words in the same sentence.
Tony: "C'mon ya old bag! She's gotta be going the same way i'm going! Go right on shit my ass red! I'm in a hurry to make signs for the field days!"

Larry: "The chlorine is too high, we can't open the pool today."
Tony: "Shit my ass, just tell the kids to not open their eyes."
by HeadPoolieInCharge June 27, 2010
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When you have to shit so bad but have to hold it, saying "i am going to shit my ass out" over and over can often alleviate the pain by some small degree.
"Honey, please hurry we're going to be late to my doctor's appointment"

"Fuck fuck fuck I am going to shit my ass out. I am going to shit my ass out. I am going to shit my ass out." etc.
by ClinicalDeath October 29, 2008
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A harsh alternative to POOP IN MY BUTT. Used only in the direst, most pressing of predicaments.
-Dude. Last night you got so drunk you made out with your sister and everyone took video of it and now it's all over the internet.
-SHIT IN MY ASS
by mirmironthewall November 29, 2009
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Shit On My Ass (etymology: Mod. English; portmaneau of the phrases "shit" and "ass," with "on my" forming the liaison) is a vulgar phrase expressing an utter discontent in an occurence, (e.g. where the conjuction "Shit!" would be used). Offshoots may include: shit on my dick, shite on my arse, holy shit on my ass, and the extremely long "piece of shit motherfucker on my ass."
Teacher: You failed the test, Stan.

Stan: Shit on my ass!

Brittany: I'm cheating on you, Stan.

Stan: You piece of shit motherfucker on my ass!
by ceaseanddesistsir April 10, 2010
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problem with someone or something that needs to be taken care of or gotten rid of, better if done earlier than later before it spreads everywhere
Wife: I just spent $300 on knick knacks!
Husband: (mutters to himself) fucking bitch is shit on my ass
by R Morris August 31, 2006
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An act or action that causes you to feel the way you would at that moment to have shit on your ass.
"Shit on my ass" This job sucks
Oh "Shit on my ass" this is fucking retarded
by Jim Von Hagen June 9, 2008
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