Acronym for Fucking Illinois Bastard

Used in the Great Lakes states (except Illinois) to refer to an obnoxious tourist from Illinois, especially from Chicago. See also fish and noiser.
I don't want to go to that bar tonight. Its Memorial Day weekend and the place will be overrun with fibs.
by zozman June 18, 2006
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Fill In Boyfriend. When a bf isn't good enough or cannot satisfy his woman in one way or another (bad listener, worse lover) and another man finds himself in the bizarre position of fulfilling all her non-sexual needs.
If only he knew everything that happened in between his girlfriend and her FIB, he would know how shitty of a bf he is.
by hunglikeamoose March 10, 2009
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What people from Wisconsin call people from Illinois, can mean; Fuckin' Illinois Bastard, or a nicer version; Friendy Illinios Brethren.
I went to the Milwaukee Brewers game last night... The Cubs were in town, and Miller Park was full of damn FIB's
by NickyB May 04, 2005
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Short for for "Fucking Itchy Balls Syndrome"
FIBS occurs mostly to athletes and males who have abnormally large testicles, which in turn, provides for the discomfort of ball-rub-against-leg. Furthermore, the victim must reach inside and scratch for no more than 20 seconds at a time in intervals of 3 minutes to prevent severe bleeding.
"Gold Bond was created to help FIBS victims"
"FIBS occurs to 9 out of 10 athletes"
"You cannot die from FIBS disease"
by Katzilla January 14, 2006
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means "friends in bed"; another term for 'friend with benefits' or a nicer way of saying 'fuck buddy'.

friends who have a causal sexual relationship.
Soup is a most agreeable f.i.b.; he comes over, we fuck until we're both satisfied and then leaves.
by Sheila July 27, 2006
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Fucking Illinois Bastards or Federal Investigation Bureau. Either a despective way of Winsconsin people to call Chicagoans or the FBI parody of GTA V.
I killed some FIB police officers yesterday on GTA Online!
I hate those FIBs!
by Tupamaro4Ever December 06, 2014
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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
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