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49.
Mo
Short for mustache. The term "mo" has gained notoriety and been propelled to international fame by the Movember movement.

Originated in Australia, Movember is an annual campaign to raise money for mens' health issues; notably prostate cancer and testicular cancer. Every year men across the globe begin November 1 with a clean shaven face and spend the month growing and grooming a mustache in an effort to raise awareness, and money.
Dude, check out that hideous Mo on school janitor.

Today when I took my Mo to the gas station a little girl screamed at the sight of us and hid behind her mother.
by Yosemite.Sam October 19, 2009
 
1.
mo'
slang that means a lot or in an excessive amount.
Jeff got mo' booze for the party last night.
by Joe Ram July 19, 2006
 
2.
mo
stands for modus operandi which translates as method of operation
Can't you see why i'm so mean? if y'all leave me alone, this wouldn't be my mo
by Donovan June 12, 2003
 
3.
short for "modus operandi"...a person's way of doing things or their style.
"If y'all'd leave me alone this wouldn't be my M.O." -Eminem

Every day I gotta pimp da ho, yo, cuz that's my M.O.
by Nick D September 29, 2003
 
4.
mo'
slang for more
mo' money mo' problems
by balla415 July 07, 2009
 
5.
Abbreviation for Modus Operandi which means a method of operating or functioning or a person's manner of working.
The M.O. of the serial killer was leaving a red rose on the body of his victims.
by Bonafide25 May 09, 2006
 
6.
MO
Method of Operation (the way you do the things).
by Fangsta March 18, 2003
 
7.
The place Homer goes to drink with his friends Lenny, Carl, Barney, and the bar flies.
Homer goes to Moes and buys a duff. OH YEAH!!!
by sir loin April 28, 2005