mo 

a gang stone they say allzwell mo run under da 5 point star hate gd'z they call dem bricks

whut up mo

mo by lil mo December 10, 2003

mo 

something or someone that is annoying or acting in an annoying way

Why do you have to keep taking my stuff. You are such a mo.
This rock is blocking our way, its a giant mo.

mo by Ryan Cleland February 7, 2005

MO 

MO is short for makeout

are you going to MO her today?

MO by Jonnygarson July 1, 2007

mo 

Short for Mormon. Used to identify a nieghbor or friend who is of the LDS faith. Used by non-Mormons, usually a derogatory term.

"Hey, are the Smiths LDS?"

"Yeah, they are so mo!"

mo by Eddie Greenwood January 10, 2005

Mo 

a slang word refering to a homosexual, non derogatory

Peter: Let's go shopping! I feel the urge to try on shoes!

myself: You're such a mo!

Mo by Kawaii Usagi May 9, 2005

mo 

shortform for homosexual; usually used by a homosexual or their fruit flies.

oh, my god..that boy is such a mo

mo by BC Layton April 13, 2008

mo 

a word that was used in the Clerks cartoon series meaning "homo"

"You act like such a mo sometimes"

mo by Hokute October 29, 2003