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.
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 19, 2006

noun: a way to refer to Illinoisans that would offend your grandma if you spelled it out for her. The grandma version of FIB is flat lander.
little timmy: Holy shit, Grandma!! Look at all the God-damned FIBS on the highway today!!
Grandma: timmy!! Where'd you learn to talk like that? Never refer to them as FIBs; it's offensive. Call those bastards "flatlanders."
Grandma: timmy!! Where'd you learn to talk like that? Never refer to them as FIBs; it's offensive. Call those bastards "flatlanders."
by earpuller October 10, 2005

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

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

Term coined from the PC game Battlefield 2. The act of being killed by a medic with the defibrillator.
by Groady August 10, 2005

Fucking Illinois Bastards or Federal Investigation Bureau. Either a despective way of Winsconsin people to call Chicagoans or the FBI parody of GTA V.
by Tupamaro4Ever December 06, 2014

by ShadowMasterYT June 20, 2021
