M.O. 

M.O-verb. commonly referred to as making out. Thus by combining the M and O of making out one creates MO. Pronounced like MOW, or MOE.

MOING, MOED, MO.

"holy cow look at rebbeca and tom, they're totally going to M.O."
"oh now they're MOING"

M.O. by amilli78693 August 20, 2009

M.O. 

moral obligation

Man that's not within my M.O. to rob.

M.O. by Tank dog February 14, 2010

M.O.  

The abbreviation for the words multiple orgasm. Said when something is so indescribably-delicious, it gives you a feeling like no other.

After sampling a taste of Robert's decadent dessert, "Chocolate Heaven", I was so overcome, that I closed my eyes, smiled, and thought M.O. - mmmmmm.....

M.O. by felinegroovey January 7, 2009

m.o. 

someone who is morbidly obese

"haha look at the m.o."
"you guys, that sucks... its not HER fault she's fat."
"...that's a guy?"

m.o. by zbj June 13, 2007

m.o. 

means your special as in your crazy, wild, retarded.you dont have a care in the world and you act that way. all negative

yo, that dude is m.o. you didnt see how he ran up on that kid and just slapped him

m.o. by cheli-chel January 13, 2009

M.O. 

The office of a math department head at a high school. Often inhabited by a cult of hostile geeks who hang out there. Also used as a generally "rule-free" zone by those in the know.

Let's go in the M.O. and microwave some beef burritos and inspire explosive colon in our enemies.

M.O. by Shocktone May 26, 2004

M.O.

Modus operandi
Standard way of doing things
Often manifest as things an organization or person does without thinking

Hey, so about that email from GooGa Plants; I don't think scheduling a meeting to talk about it is productive. I'm just going to implement the changes then ask them to review.

It's their M.O.: they schedule meetings for everything. I'll put it on the calendar, but once you get it done we'll share and see if they still want to hold the meeting.

M.O. by cinf February 19, 2026