When someone is being a fucking ass for absolutely no reason and is always picking on you somehow. That person also has a fatass.
Person A: What? Why the long face?
Person B: Ugh, just got joassed by some bitch, didn't even say anything to her!
by acornbabe November 3, 2019
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Slang shorthand used in similar context as "Whatever," "You so crazy" or "Get your ass out of here." Often used in response to something absurd.
"Hey, I'm going to run 100 miles non-stop."
"Joass!"
by shadowboxer8 March 28, 2012
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