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60.
Mo
adj or adv. really or a lot
1) My toe emits a mo putrid stench resembling burnt monkey sauce and dolphin ass.

2) I miss you mo!
by Michael Carrier July 27, 2004
 
8.
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
 
9.
Abbreviation in both speech and text for "<i>modus operandi</i>" (Latin) or "mode of operation" (English). The term is used to mean either the way in which one does something, or his or her focus or goal/ambition in a certain aspect of life.

"Main Entry:
mo·dus ope·ran·di
Pronunciation:
\ˌmō-dəs-ˌä-pə-ˈran-dē, -ˌdī\
Function:
noun
Inflected Form(s):
plural mo·di operandi \ˈmō-ˌdē-, ˈmō-ˌdī-\
Etymology:
New Latin
Date:
1654

: a method of procedure ; especially : a distinct pattern or method of operation that indicates or suggests the work of a single criminal in more than one crime"

Straight from Merriam-Webster, folks. http://www.merriam-webster.com/dictionary/modus+operandi

The idiot that said, "<i>operandi</i> is not a Latin word" is incorrect and needs more thumbs down. That entry should be removed.
My M.O. is to make the author of definition #2 look like a fool. That is what I am "all about."

I educate people and correct mistakes in "wiki" slang dictionaries by editing and making my own entries that state corrections of previous ones, when aforementioned entries are stupid. That is my M.O.

My M.O. is humiliating people who think they know more than they do even though both they and I are anonymous.
by Anomalous Karma April 30, 2009
 
10.
mo
Greatest man alive. Listens to what you have to say. Also a shoulder to cry on. Will never disappoint you. Simply someone who is a PLAYA PLAYA.
1. WOW look at that Mo
2. Look at Mo go!!
3. I luuv me some Mo.
by outa4950 February 03, 2010
 
11.
m-o
Not an urban term at all, but a legal one. Short for Modus Operandi (method of operation). One's either habitual or premeditated way of doing things.
His m-o was always smash-and-grab
by Entymol August 13, 2006
 
12.
M O
M O is an abbreviation for Modus Operandi. which is Latin for Method of Operation or Mode of Operation

In criminal investigations, it refers to the criminal's methods whether murder or burglary or whatever as similar methods used in separate offences which could indicate the same person was responsible.

It doesn't have to pertain to crime. It can also be used to describe a person's 'trade mark' habits.
My girlfriend always fingers my a-spot when she gives me head. That's her M O.
by RoosterCranium September 21, 2009
 
13.
Mo
A Term of Endearment That You Call Your Friends. Used in New York
"Wassup John"

"Ayo Wassup Mo"
by PeteyDaDon March 27, 2010
 
14.
Better than Taco Bell in every way.
"Welcome to Moe's!"
by Pierre Chang May 16, 2009