Top Definition
It means " I'm F*#ked Up Bro", just feeling super weird.
I was hangin with the boys tonight and we hit about 5 reggies and drank beers all night and i was just #FUB , couldn't walk or do anything.

Just hung out with my friends and got #FUB and chilled all night watchin movies and playin video games.
by smitty ktwon reppin August 20, 2011
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