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Over Obsessive Fan

Person 1: Did you see the way Tori was at that concert last night?

Person2: Yea. I didn't know she was a O.O.F
by random anonymous person February 11, 2009
an exclamation of extreme sexual interest.
Andy: have you seen Megan Fox's superbowl ad??
Fonz: OOF!
by beaaar February 09, 2011
A word that is mainly used when somebody trips and falls. It is more commonly used by girls when they fall on their face. It translates to qianbi in chinese
1. "Ack! OOF"

2. "Oof. Just fell flat on my face."
by Aurora Cecile Johnston December 26, 2010
1. Reflex exclamation of pain, discomfort or physical shock.

2. (In response to the above) An expression of empathy.

Synonyms: ow, ouch, argh
"Oof, that hurt!"

"Oof, I feel your pain, man!"
by DashW0 May 16, 2010
An air-dried vagina making a noise similar to a yetti.
Her vagina oofed after a long night of vigorous intercourse.
by Chives12345 June 03, 2010
Official On Field hat. A hat that the majors in the MLB wear while they are on the field. Authentic. Almost 100 percent of the time the hat is the same colors as the team colors. *Look for the full sticker across the bill.*
1. Quan, Taurean, and Jerry I just got that new Yankees OOF.
2. Mack-8 do you see that guy with the purple and orange Atlanta Braves hat on..... WTF IS HE THINKING?!? He needs an OOF.
by Mack-VII March 25, 2010
An exclamation of displeasure in seeing an unattractive female from a distance. Said loudly and quickly, usually accompanied with a quick head turn away.
Bro 1: Get on that over there. *Points towards unattractive girl*
Bro 2: OOF! *turns away*
by HoboStrikeForce August 18, 2011