15
A Term of Endearment That You Call Your Friends. Used in New York
"Wassup John"

"Ayo Wassup Mo"
by PeteyDaDon March 27, 2010
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16
Method of Operation (the way you do the things).
by Fangsta March 18, 2003
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17
Short for homo, which is short for homosexual.
My roommate andy is a huge mo.
by Jordan March 10, 2005
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18
Adj.
Short for Method of operation. Latin form "Modus expeditione." Meaning what one certain person is most noted for. A certain look, way of doing things or even attitude.

There is no latin word operandi
Stan: "who do i know that likes drinking and hates zombies?"
Nate: "Man, drinking and hating zombies?! Add pirates and thats my M.O."
by Andrew Von Doom September 12, 2005
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19
1) short for Captain Morgan's Spiced Rum
2) short for "More"
3) a nickname for a lot of names, like Melvin, Mohan, Moseph, etc.
Mo, if you drink any mo' Mo you'll be on the flo'.
by Nick D September 30, 2003
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20
Someone who is a sexy beast or originates that of sexy beasts.
Woah....he is such a mo!
by Chuckster Norris March 11, 2010
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21
Refers to a member of the Black Peace Stone Nation. A Mo is an abbreviated form of the word Moorish which refers to a Moor (a person of African descent). This name was adopted by the Black Stones when Jeff Fort (Chief Malik) restructured the BPSN nation to follow after Islam, specifically the Moorish Science Temple Muslims.
What up Mo? All Well Mo! What'z good mo?
by 5 Star Elite January 21, 2008
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