1. The act of fucking someone in the ass.
2. A disrespectful way to someones attention.+
1. Dude, you always fuck-ass!
2. Hey, fuck-ass, get me a beer!
by Brett Lawson March 6, 2007
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A phrase in which is used when you have absolute no comeback when angered or annoyed at another person. This phrase makes the person who uses it look completely stupid, sounding like the person is referring to anal sex, when their only trying to insult. One of the worst comebacks in historical time.
Boy flips Mexican beaner with a rubber band...

Mexican: "Gaaahhh, you fucking ass!"

Boy: "Uhhh? What am I doing?"
by TheSlothOfTheUniverse May 15, 2010
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Someone constantly acts like they have a large erect penis filling their anal cavity.
Noah: "Hey Hayden! You're a fuck ass!"
Mike: "hell yeah!"
*Noah and Mike share a glorious high five after calling their classmate a "fuck ass"*
by Schmityyy April 13, 2015
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verb (slang);; seeing something that gives you a boner and maybe even makes you jiz in your pants.
He's hot, I'd fuck ass.
by taylinaur January 12, 2010
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A cult quote from the movie "Boondock Saints." Appears multiple times, spoken by the bartender, Doc, who has Tourettes Syndrome.
Why don't you make like a tree, and get the fuck outa here! fuck-ass!
by i.wms September 2, 2005
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someone embodying all of the qualities of douche-baggery but beyond the level of simply being a douche-bag...this might include neglecting his traditional roots or being a scientologist, for example.
Bob: Dude, I gotta pee - want to play swords?
Jim: Bob, you're a fuck-ass...
by Michipitonka March 29, 2006
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