FMB 

"furrow my brows" when something is completely wrong or you are confused about something.

--Hey dude, I just downloaded the new one direction album, their music actually isn't that bad.

-- no, dude it is actually a piece of shit, fmb

FMB by brows4brows April 27, 2014

FMB 

Fuck My Brain

Aaaarrrggghhh!! FMB!! I can't get that song by blah blah out of my head!

FMB by Dr Watson October 13, 2010

FMB 

Probably the douchiest fucking way to say "fill my bong" or "filling my bong" on the face of the Earth.

excuse me my nigga as i FMB

FMB by xxyyxx July 15, 2011

FMB 

Fuck Mad Bitches

O-town Slang
Used as a verb or standalone phrase to denote promiscuous desires (especially on school breaks and weekends at the club or beach)of high school and college age males. *originated in west orlando

FMB

J: lets go to a movie
B: Hell no faggot lets go to the club and FMB

FMB by vsqm? April 30, 2009

fmb 

Fat Mexican Bitch; Loudmouthed Mexican girls that suffer from childhood and teenage obesity

That FMB won't shut the fuck up.

fmb by Cougar Lenin April 21, 2007

FMB 

fuck my beard.
used as a pick up line for sad people with big facial hair

"hey sexy lady, fmb"

FMB by ernieW March 27, 2010

FMB 

Fuck my Butt

why are we playing in this gay baseball league...FMB (FUCK MY BUTT)

FMB by DISUBURBIA June 21, 2008