free base, a place to chill and hangout with friends without supervision
Fred: what should we do tonight?
Terrence: idk maybe someone has a fb we can go to?
by OkNowWhat April 02, 2020
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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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Full body shutter
This term originates back to the summer of 2007. Originally an involuntary spasm when touched by a disapproving female, it has since been adopted by others as a formal way to communicate "that's really gross", or "that's fucked up."

It can be used by males and females and should not be overused. If a person is incapable of shaking the entire body in disgust, they are not allowed to say "aww, fbs", and are excluded from the fan club.
Jen: OMG, Stacey is giving Phil a hug. That bitch!
Jon: Yeah but he's having an fbs, he's clearly not interested
Jen: What a relief! I'm glad fbs exist!

NOTE: The above example is based on an extremely true story. I swear.
by Peaters Griffiens April 16, 2009
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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 01, 2009
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Flappy Bird Survivor

A person that has been in the same room as a person playing FlappyBird and raging.
Girl: Omg, I'm a FBS! Victoria was throwing books at people
by AntiRanchGirlOC February 20, 2014
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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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