FMB

Fuck My Brain

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

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

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

by vsqm? April 30, 2009

FMB

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

"hey sexy lady, fmb"

by ernieW March 27, 2010

FMB

Fuck my Butt

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

by DISUBURBIA June 21, 2008

FMB

Fuck Mad Bitches

Wow Tom! Let's go FMB all night!

by Delboy99 April 17, 2015

FMB

Fucking Man Boobs

The act of rubbing your penis all over an older mans boobs. Works best with chest hair.

"Dude, me and Bob had such a good time FMB all night"

"I like FMB, its the only thing I live for"

by William Woody September 6, 2005