O-Face

In 2010, Thomas' aghast face, also known as the infamous "O" face, when the Fat Controller asks the inspector if he saw fish, along with the musical note that went with the shot, became an internet meme.

Person 1: I hate Thomas the tank engine
Person 2: why
Person 1: because the O-Face scares me

by Delete this account now June 25, 2023

The Big O

Defined as the female's climax in response to sexual stimulation.

My sweet babboo gives me The Big O and I am his slave for a week.

by THE REAL JULIA June 22, 2006

O Block

The most dangerous place in Chicago home to rappers like lil Durk King von and chief Keef aka parkway gardens

Bro I’m from O Block don’t play with me

by MT Bxck on yt May 7, 2020

half o

Short for "half ounce" usually in reference to a half ounce of marijuana.

Wigger 1: Damn nigga you got a half o in your bag!

Wigger 2: Maaan that aint shit, I be tokeing half o's by the day

by G ram September 3, 2008

M-O

Modus operandi (often used in the abbreviated forms M.O. or simply Method) is a Latin phrase, approximately translated as "method of operating" The term is used in English to describe someone's habits or manner of working, the method of operating or functioning. It is often used in a criminal sense, to profile the methods employed by individuals during the execution of a crime, and may also be used in offender profiling,2 where it can also be used to find clues to the perpetrator's psychology.3 It largely consists of the methods used to execute the crime, prevent detection, and facilitate escape.

What is the Perp's "M-O"???
What is your "M-O"???

by HRVAT1975 July 13, 2009

j/o

Jack Off; masturbate

We had a mutual j/o last night.

by Billy Jean Cox April 18, 2003

O Muscle

The muscle in a woman's tummy that contracts during an O.

Dude: Is that a six pack?
Chick: No, it's a highly toned O Muscle.

by B.B. Smith October 20, 2008