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15.
FS
fat slob
orriginated in the kitchen of a small town in a far away country called canada where people live in tiny ice houses called igloos. used as a dirogatory term for stupid mothers who beat their children with rolling pins and have over extensive guts. also enjoy long naps and harvesting souls after midnight.
Child: can i go out with some friends tonight
Mother: no your room isnt clean
Child: what an FS
Mother: what does that mean?
Child: muhahahahaha!!!!
by Capt. beto borge January 07, 2010
 
1.
fs
Full Service - conventional sexual intercourse
by swinger September 19, 2003
 
2.
F-S
To fireswipe, this means when you enter the subway illegally by either jumping the turnstile or using a broken turnstile.
Are there any PHOENIX around? I think we should F-S vin.
by Shazaamizer June 25, 2006
 
3.
fs
Fucks Sake. Colloqiual (usually Eastern Scottish) internet acronym. Almost identical to ffs but lazier.
fs, those bastards at amazon havent shipped my album yet.
by wadie May 15, 2003
 
4.
FS
Short for "full screen", as opposed to WS for "wide screen".
Spider-Man.2.FS.DVDRIP.XViD CD1.avi
by RotJ October 04, 2005
 
5.
fs
Short for "Fat Slut" - girls who are obese and still wear tight, revealing clothes in attempts to get sweet hooks.

From the same semantic field as "ys" (young slut).
"Far out why are all parties nowadays filled with fs."
by Drylinerrr October 30, 2011
 
6.
FS
this means "For Sale." People usually use this word on forum sites especially on car forums, but it can be used on any kind of sites where you can sell and buy.

using this word in a thread or forum where you post pictures and description about what you are selling.
For Sale: Front Bumper Lip for 250 shipped.

or

FS: Front Bumper Lip for 250shipped.
by ilovehonda November 15, 2007
 
7.
fs
Acronym for Fucking Shit
WTFS? I stepped on a piece of bitch shit!!!!!111
by benhpark December 14, 2007