look up any word, like blumpkin:
 
1.
FUB
abbreviation for fuck you bitch.
Kaitlin: you're ugly
Babz: fub.
by babzie May 07, 2006
 
2.
fub
fat ugly bastard
hey fub
by Anonymous July 28, 2003
 
3.
Favorite Un-Biological Sister
OR
Favorite Un-Born Sister

A girl who you see as your own family even though you are not blood related.
We are not best friends, we are FUBS.
by malimalu248 December 11, 2009
 
4.
fub
Fat Ugly Bitch also Fucking Ugly Bitch

1) A woman who hit the trifecta by being an asshole,
ugly and overweight.

2) A woman who is both an asshole and
who is so fucking hideously ugly that
looking at her makes your eyes hurt.
Roseanne and Rosie O'Donnell are unattractive
fat women who are also known to be real assholes.
They're the inspiration to FUBs everywhere that they
too can be fat, ugly, act like bitches, treat guys
like crap and yet still get rich and famous...
Thanks for nothing you FUBs!

I wanted to poke my eyes out with a
sharp and hot object after seeing that
FUB staring out at me from my office
directory.
by Darclyte August 03, 2006
 
5.
A F.U.B. is a Fat Ugly Bitch
"yoooo, your sister is a F.U.B."

-"What?"
"Your sis i a fat ugly bitch"
by Stokley Jones January 19, 2012
 
6.
FUB
Acronym: Fuck You Bitch

What you say to a person who is a cunt (independent of whether that person is a fag, a bitch, a moron, a douchebag, an asshole, a man, a woman, a teddy bear, or a gentleman)
Secretary: Lee-ah, is that how you say your name?
Lee-ah: No, just sound it out.
Secretary: Oh, ok, Lee-uh?
Lee-ah: FUB, IT'S LEEDASHA, IT AINT NO SILENT DASH.
by C-Cup January 22, 2010
 
7.
fub
(n) cum, sperm, ejaculation, etc.
Mufaso: "Bro, last night I got fub in my girlfriends hair."

Samuel: "damn"
by 69pak January 05, 2014