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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
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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
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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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