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1. All encompassing phrase used primarily as a substitute for shut the fuck up but not limited to that.
1a. Mum: "Oz, can you clean your ro-"

1b. Me: "You comin out tonight?"
Fats: "Nah man. I'm beat after walking up those stairs."
Me: "Well, fuck your ass then"
*walks off*
by P-Monay August 09, 2006
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An insult to anyone possible. Basically fucking the rectum will hurt, so hence this term. Ass can also be defined as booty.
Bob: hey help me do my hw
Matt: fuck your ass
by bizkitdog March 30, 2005
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