The fat face stinky fucktard that rejects your urban dictionary entry because he envies your awesomeness.
oh man, that fartass rejected my shit again!
by spiderguy February 16, 2015
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Just a random insult. Combining "Fart" and "Ass." Or accusing one of passing too much anal gas. Not an insult to be taken to heart, however. Fun times.
"Hey, John, how about you stop farting, you fartass."
by Troy McGrath July 31, 2003
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Waste time doing something pointless and unproductive. Usual meant as a negetive
A: What are you going to do on your holiday break?
B: I dunno, probably just fartass around all day.
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"Teens today have no drive. They just fartass around"
by FrozenEternity August 28, 2015
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The reverse of "Fuckin Smartass"

Used in a more playful and acceptable tone that can be tested in a work, school, and religious environment without fail
"Quit being a smuckin fartass!"
by D. Hunter February 26, 2005
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a person (especially with lactose intolerance or IBS) with a huge ass that farts all the time
timmy: hey, billy! stop being such a fartass! you’re gonna stink up the whole classroom!
billy: i promise i won’t do it again (farts even more)
timmy: RIGHT THAT’S IT! *loads shotgun*
billy: wait man i ate a lot of spicy food i can’t control my far-
timmy: BE GONE!!! *shoots timmy in the face for being a fartass*
by jkdsjksdhsdakjsdakldfja September 9, 2023
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