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The act of being under the influence, and trying, yet failing to hide it. Symptoms include laughing, falling, falling while laughing, rolling, or anything else uncharacteristic of the one "fuckin up".
Sam: Guys, guys.... we should..... guys.... dang...
Urrybody: Sam, you fuckin up!
by BustaNinja August 08, 2011
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Sep 8 Word of the Day
A casual invitation / threat used by an individual that is not afraid of fucking someone up.
PAUL: I'm going to beat your ass.

JACK: Fuck around and find out, fool!
by NX STARCHILD October 16, 2020
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