O.B. 

Ocean Beach

San Diego surfbum neighborhood.

Let's go to that bar in OB.

O.B. by Ken December 15, 2003

O hens 

Oprah's loyal fans and consumers who hang on every word that Oprah says, while clucking like a bunch of hens to all of Oprahs issues.

Did you here my girlfriend?
No, why?
The O hens where at it again over the problems of america

O hens by Thom0325 May 16, 2007

\_(o.O)_/

A symbol meaning WTF or seriously don't get it.

Why do people mess with you so much?? "\_(o.O)_/"

\_(o.O)_/ by fourm128 May 23, 2009

O'Hara 

irish folk who either live on a farm, have lived on a farm or their parents / grandparents lived on a farm.

O'Hara's that don't live on a farm yearn to have their very own cow.

O'Hara person: "i wish i had a cow..."

friend: "..."

O'Hara by epicc person May 13, 2011

o/\o

ASCII representation of a high-five.

Centurion> pandagirl, do you have any latin in you?
Pandagirl> No
Centurion> want some?
Pandagirl> ...
PH> LOL
PH> HIGH FIVE IT
Centurion> o/\o

o/\o by Subspacer March 13, 2006

o.c.

another word for Oxy Contin

Did you get them O.C.'s from the pharmacy last night?

o.c. by Erik November 28, 2003

o-face 

The expression that the letter O from sesame street makes when ejaculating

Today's show was brought to you by the letter OOOOOOOOOOHHHHHHHH get me a towel

o-face by sassy mc frassy March 13, 2003