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4. sff
Short hand term used when texting which means Spontaneously Fucking Funny! This term is to be used only when something is quick, witty, and off the cuff. This term is not to be overused! sff puts an lol to shame!
U R sff! It turns me on!:-)
1. sff
Same Fanbase Factor
This relates to the GameFAQs polls where two characters have the same fanbase, such as Zelda/Mario.
HOLY CRAP, Metroid got beat by SFF!
2. Sff
So Fucking funny
Omg Your SFF
3. SFF
sexually frustrated female. A girl who is either not in a relationship or is in a relationship that is not fulfilling her sexual needs.
"God, I haven't made out with my bf in 3 weeks, I'm such a SFF"
5. sff
''so fxcking funny''
-hey how was the Hangover?

-SFF!

-would you go out with me?
- HAH, that was sff.
6. sff
Small Form Factor....you know those pcs that are the size of a gamecube. The best ones are made by shuttle.
MAN THAT SFF is soooo cool!
by Eric Shi Dec 23, 2003 add a video
7. SFF
An acronym for "So Fuckin Funny". To replace the much lamer LOL for "Laugh Out Loud". Implies utmost hilarity. Generally used in text or instant messaging; can be used as an adjective or on it's own.
That comedian last night was SFF!

His yo momma joke was classic. I couldn't stop laughing. SFF!

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