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36.
FIB
acronym. (n). Stands for Fucking Ignorant Bastard.

Meaning a shallow, narrow-minded, opinionated person who cannot tolerate any opinion contrary to his/her own.
Don't argue with Jack. He's a FIB. It's like arguing with a rock.
by Back Burner April 03, 2005
 
37.
FIB
Fucking Illinois Bastard

A lame excuse for an acronym orginated by Wisconsin residents in between daily inbreeding and masturbating to portraits of Vince Lombardi.
without these FIB's contributing so heavily to our economy we would all be poor and even more WORTHLESS.
by chip douglass April 18, 2005