O.C.

1. A term used for a ugly overconfident girl who thinks she is the shit.
2. The term used for a girl that is so fat that she is the size of Orange county

SHe is a bit O.C., she's not even hot.

by Motha Sucka June 11, 2006

O. N.

old nymphomaniac

hey, Joe the girl you were with last night is an "O. N."

by tbone1956 July 1, 2011

O.M.F.

Meaning: Oh My! a Failure! (O.M.F.)

Example Sentence: "O.M.F.! He missed!"

by Adsteroo May 12, 2009

O.A.G

"Old Age Gurner"...Spaced out PillHead the wrong side of 40 still gurning strong, often reduced to a dribbling sweaty wreck.

"Look at that sweaty O.A.G over there throwing shapes like theirs no tommorow".

For Further info refer to the term "Gurner"

Also B.F.G - Big,Fat,Gurner.

by Jonny Gurns April 24, 2006

O I C

Abbreviation of "Officer In Charge"

Hi, I'm new here. Where's the O I C?

by Pte Jones February 17, 2008

O'Malley

Something that is, was or will be uncool in it's action or presence.

Don is so O'Malley when he's being such a touchy dick...

by J G February 1, 2004

o'hare

A word used to describe a person who is not actually mentally retarded but shows very clear signs of the deformity he isn’t supposed to have. The signs include, Stupid comments that don’t make sense, having trouble operating a fork and knife in sync and also having trouble not walking like a complete gimp.

person one: OMG my brother is such an idiot, he tried to retrieve his toast from the toaster with a knife today, and nearly killed himself!

person two: lol what an o'hare.

by wogboy1 August 3, 2006