fb 

Slang for the term "female boner". A female boner is theoretical, and is a description for high sexual arousement in a woman. Can also be adopted for excitement, not of a sexual origin.

1. Oh my God! It's Justin Timberlake! fb!
2. I was fb-ing when I recieved the best christmas present ever.

fb by Jenny Foster. August 8, 2003

fb 

an exclamatory term meant to be yelled to a friend when pissed.

jim: dude that girl just took your cup.
ryan: fb

fb by bigdeezy7400 January 26, 2009

fb 

short for full beer

Beer that has been just opened

or an opened beer left to sit with more then 3/4 full

While cleaning up after a party you will commonly come across fbs.

Hey toss me an FB

fb by Full Beer September 23, 2007

fb 

A kid whos ass smells and sticks to ur seat or anything else that comes in contact with

Dam FB ur ass smells

fb by poop shooter April 29, 2003

fb 

Fag Bag

Yeah. and he's being a total fb!!

fb by jdawg! June 17, 2010

FB 

1. Followback

On instagram, somebody could comment one of your pictures "yo can I get a fb?"

FB by :(hi): April 20, 2015

fb 

a slang word for facebook

ily fb

fb by sharks28 October 26, 2016