look up any word, like cunt:
 
1.
sFB
Stupid Facebook. Used to express frustration with Facebook for numerous reasons.

As it is described by its Facebook fan page:
It's not just Facebook. It's stupid Facebook. It's often broken, usually annoying, and occasionally appreciated. But stupid. sFB.
"Facebook is messed up again. sFB."

More often "sFB." appears to express user frustration with no other explanation needed.
by Communist pirate August 03, 2010
 
2.
sfb
Shit for Brains
Hey sfb, what ya doing ??
by Bonehead April 08, 2003
 
3.
SFB
So F***** Bored
As a status:
SFB.....
by K.LM19 September 03, 2011
 
4.
SFB
Shit fer brains - someone who makes bad decisions and has no common sense.
His poor decision-making reflects his SFB.
by CATX gal June 18, 2013
 
5.
SFB
SFB (Settle For Black): When a large white women reaches a certain age, viable white mates all but vanish, but there's always the option to 'settle for black'.
Damn, Heather's like she's put on a few. Another few years of that kind of diet, and she'll have to SFB.
by Don's Johnson February 28, 2012
 
6.
sfb
skinny fat bitch.

a girl who eats a lot but is skinny
WOW that girl is eating a triple cheeseburger, shes an sfb!
by Gucci Khalifa May 02, 2011
 
7.
Sexually Fustrated Butt Sex
Mason: Dude my girl wont have sex with me!

James: Mine wont either....

Mason: I'm sexually fustrated, S.F.B.S?

James: Bend Over!!
by yeahbuddie8395 January 01, 2012