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8.
FBS
Stands for Female Bassist Syndrome. This is the condition men in to alternative music get when they see a woman playing bass. Symptoms include drooling, temporary insanity and mental retardation.
"Oh why can't Liz Buckingham marry me?"

"Clasic case of FBS. She could be a complete bitch and you've never actually seen her face under all that hair."
by MingeyJohn August 27, 2011
 
9.
fbs
full belly syndrome

symptoms include drowsiness and in extreme cases the inability to answer calls or be active

the leading cause of fbs is considered to be overeating
after thanksgiving dinner and a half bottle of wine, i curled up in my snuggie and suffered stage 4 fbs
by swagerty856 July 25, 2011
 
10.
Fat Boy Swag or Fat Boy Struggle two meanings that can be used in a good or bad way.
Glenn: i cant believe you got that girls number dude
Jones: F.B.S.! dude, i got that Fat Boy Swag

or

Jones: dude help me out of this jacket im stuck (starts to sweat and is struggling to breathe)
Glenn: haha "F.B.S." (Fat Boy Struggle)
Jones: Thanks man! (sarcasm)
by Jones Big Bones February 05, 2010
 
11.
FBS
French Baguette Styley

Abreviation, to be well hung, have an abnormally large penis, it is usually split into three parts, Senior, Intermediate and Junior starting at the tip going to the base, Junior and Senior interchange but Intermediate is always in the middle. If you are FBS you bang a lot of birds, but don't like bragging about it.

Geoff likes boys and willies
Geoffrey is FBS, also like a pringle tube, or a beer can...swinging
by Beanseen February 04, 2010
 
12.
FBS
Melissa and Aram broke up, but their relationship is now upgraded to be each others FBS when they get horny.
by Vision.NL December 25, 2009
 
13.
FBS
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
 
14.
FBS
FBS is short for the Fucked-up Broadcasting System is used when somebody is so trashed, they feel the need to tell people about it.
Joe: "Man, I'm so fucked up!"

Friends: "Joe's using the FBS."
by Dorene January 27, 2008