mo 

Abbreviation for "moment"
Similar idea to "min" shortened from "minute"
Same as "tick" also.

I'll be back in a mo'/I'll be back in a min/Back in a tick

mo by PPLPerson June 22, 2006

mo 

Noun.

1a: Short for homo, which is short for homosexual.
b: Used as a derogatory term for people who are behaving in a "homosexual"* manner.

Adjective.
1: Used to describe someone who is behaving in a "homosexual" manner.
2: Used to express distaste for something.

syn-gay. homo. fag. queer.

*The term "homosexual" is often not used literally. People use the term loosely to refer to anything that they don't like.

Noun:

Dude, Rob is such a mo because he's wearing lime green sweatpants with a pink stripe down the side.

Adjective:

Joe: Hey dude, are you coming to the football game tonight?
Rob: I can't--I have to do a report for Bio.
Joe: That's mo.

mo by Jerk The Mom December 2, 2003

mo 

Homosexual -- Short for homo

Generally, derogatory

Dude... Paul is such a 'mo.

mo by Jeff December 27, 2002

mo 

great guy

he is a mo

mo by jason March 2, 2004

Mo 

(noun)-Faggot, (ie. hoMOsexual, hoMO)

You're one gay ass mo.

Mo by Olaf September 21, 2004

mo 

A loud, obnoxious person who is both weird and annoying, talks as if he is a mile away from people. Also slang for homo.

-Wow he is pullin a mo...

Damn dude your ears must hurt

mo by Tommy Mo May 27, 2010

MO 

short for a collection of words.

Momentum
moment
motivation

and anything that begins with MO for that matter.

-He is doing great!
-yeah, he has a bunch of MO

or

- i am so not getting anything done, lacking MO today.

MO by man of the MOment April 13, 2010