acronym for oh fuck sex. when a person is damn excited. hehe.
Guy 1: Hey, i got the rock concert tickets
Guy 2: OFS!!!! this is the best damn thing thats happened in the whole day!!.
by Rash_dreamer August 31, 2007
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O.wn F.ucking S.chedule
Term for a person who shows up to things whenever they want and anyone who wants to see them must be inconvenienced by them.
Guy 1: I need my uniform, where's the dude who takes care of that?

Guy 2: He's on OFS, you just missed him. Try again tomorrow.
by slayer1911 September 23, 2013
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On for some. When you're up for action with a member of the opposite sex, however unlikely, and probably don't even speak with them.
Helen is looking good today. I'm OFS.
by toppkatt June 14, 2017
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