SF

Special Forces. Used in the military and miltary wannabes.
rick: Dude i wanna be SF when i enlist.
Dude: You're hardcore.
by kilo15 November 21, 2005
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SF

SF means Saturated Fat

it can be woman or man, usually fat ugly and full of themselves...literally.
please see third paragraph down on "c dub" for further clarification
yo did you see SF today? she ate my Doritos and drank all the beer and now shes all over my boyfriend!
by ahhhhhhhhhhhhhhhhhhhaha April 05, 2010
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SF

Girl: I saw a review, but I don't like SF
Boy: I love SF. Most of it. I hate Star Trek.....
by Soyrua January 02, 2010
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sF

noun. to be weak, gay, newb.
a d2 clan known for using AA in clan duels to win, as that is ther eonly hope, also known to pray to god for help when dueling good clans.
that clan uses AA and duels like a bunch of sF newbs.
by sF-Holo July 28, 2004
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sF

Man A: fu sf
Man B: well fu
by Blom September 03, 2003
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sfs

Abbreiviation: Shit/Fart Seperator. Located in ones ass to alow one to fart without shitting in ones pants.
Oh no! My sfs malfuntioned! I thought I was gonna fart but I sharted!
by Wiz Bang June 25, 2007
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SF

That girl was SF. But she was not san francisco.
by DA September 03, 2003
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