O-hole 

Slang name for Obama. It's a play on the slang word A-hole. It works especially well at dinner parties filled with effete liberals.

The President ordered the Treasury to print more money, and he can't figure out why we're getting rampant inflation. What a stupid O-hole!

The O-hole still has not produced his birth certificate, his college records, or his passport records. What's the O-hole hiding?

The O-hole order a jet to buzz the statue of Liberty for a photo op. Of course, it was a taxpayers expense. Do you expect the O-hole to pay for anything himself?

O-hole by dbehsman June 24, 2009

O-Bagger

An Obama-Apologist sheep, which is the Democrat equivalent of a Tea-Bagger. No matter what or despite the truth, an O-Bagger will lie to protect their favored president, just like how Conservatives protected GWBush.

I questioned the lies of President Obama, just like I questioned the lies of GWBush when he was president, and this O-Bagger verbally attacked me with their typical vitriol & diatribe.

O-Bagger by Revolutionary Love July 30, 2011

O's 

ounces,particularly of crack

i cooked up ten o's last night.

O's by Devon W. February 15, 2006

O in my M 

It stands for "orgasm in my mouth"
When something you eat is really really delicious you almost feel like groaning

Oh my god dude this ice cream was a total O in my M!!

O in my M by kajr January 10, 2009

O.B.G. 

Oldie But Goodie. A term to describe a middle aged woman over 50, that is extremely attractive, well built, dresses sexy and who has obviously taken great care of herself.

For an old babe, she is so hot, I'd definitely love to sink my link into that O.B.G.

O.B.G. by TIMJB1 October 16, 2006

O.W.A.C.A 

Organization without a cool acronym

I work for the O.W.A.C.A

O.W.A.C.A by Marcling August 13, 2010

o'er-crow 

v. t. To crow, exult, or boast, over; to overpower. Contraction of "overcrow."

HAMLET
O, I die, Horatio;
The potent poison quite o'er-crows my spirit:
I cannot live to hear the news from England;
But I do prophesy the election lights
On Fortinbras: he has my dying voice;
So tell him, with the occurrents, more and less,
Which have solicited. The rest is silence.

o'er-crow by Overlord Zurg March 15, 2004