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1.
One who tells lies. Use usually implies a certain amount of affection on the part of the one using the word of another.
"Oh, you are such a fibber!"
by Nupe January 06, 2004
 
2.
A fantastic metal/hard rock pub on Parnell Street in Dublin city centre. 3 euro drinks on a Thursday!
Hey were you in Fibbers last Thursday?

Yes I was and i woke up in the sound booth on Sunday, must have been a good night!
by Metal I clock August 28, 2008
 
3.
An extended version of the acronym FIB, which stands for "Fuckin' Illinois Bastard/bitch." Use when you've already overused FIB and gotta change it up. Used primarily by Wisconsinites.
Shit, that damn fibber minivan practically ran me off the road!
by OpusAtrum1 January 21, 2009
 
4.
One who is from Illinois (stands for F*cking Illinois Bastard
The fibber drove really fast up in Wisconsin
by mike January 18, 2005