The short hand term for Facebook the online networking website.
Maddie sees a picture jojo has just taken:

Maddie: OMG! FB! FB
Jojo: Totally, I'll add it tommorow!
by La-Who? May 18, 2007
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Short for fucking bitch. Usually used without an accompanying sentence. Sometimes used to insult someone without them knowing. SPronounced: Eff-bee
Guy: Do you want to go to prom with me?
Girl: No, so stop asking me every day.
Guy: FB.
by knitman April 1, 2009
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Short for Fat Bitch. Can be used in public without sounding like a complete asshole, including when the FB is still present.
Dude, that FB wouldn't stop hitting on me.

Yeah, that sucks.
by Ryan_H. May 17, 2008
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Hey where is my FB?
by agentx44 September 29, 2008
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1. Any two word expression with words beginning with F and B. For example: Fat Bastard, Fart Breather, Fiendish Buttsecks, etc.

2. The 1981-1985 Mazda (Savanna) RX-7, 1st Generation. Most people will confuse it for a Porsche, but it's a rotary powered banshee. Called an "FB" after its chassis code.

1. I spotted a couple FB's in the FB engaging in some serious FB.

2. What we thought was a weedwhacker turned out to be an FB outrunning some cops on the interstate.
by TSIBtF February 22, 2007
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Basicly your fuck buddy, but it can be where you only find eachother attractive, or if on likes the other more than just a fuck buddy. or bothe love eachother
Me and Zak S. are FB, but we both love eachother, cuz he stood up his girlfriend 4 me!!! lol
by lil'ms. flirt May 21, 2005
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Dude, u should put that pic on FB!
by bronuts October 19, 2008
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