1 definition by the illitator

Top Definition
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!

#im #text message #l.o.l. #l.m.a.o. #o.m.f.g.
by the illitator May 19, 2006
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