Bill is such a mo-mo, even that retard Joe thinks he's an idiot.
by stephen_ June 9, 2005
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Short for Mormon, used by visitors to Salt Lake City, other highly Mormon populated places, or around Massachusetts governer Mitt Romney so as not to offend the Mormons. Usually used in a derogetory sense but not a derogetory word.
So the Mormons, (see Mitt Romney coming) I mean, the mo-mo's really started Salt Lake city with 3 women? What weirdo's!
by Mister N February 24, 2006
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"Sorry I can't go with you. I'm a little busy at the mo."
by Stationary March 24, 2009
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A slang term used in Utah for a Mormon, or one who practices the Mormom "religion" read cult.
That family across the street sure is mo mo. They have a lot of kids.
by Karen Shelton November 2, 2006
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Ok, summary time. The word or acronym M.O.S. can have several meanings:

1. Member of the Opposite Sex
2. Mutual Oral Sex (see 69)
3. Make out session
4. "Mom over shoulder", a warning in chatrooms or IMs
5. Ministry of Sound, a nightclub in London UK
6. A short form for mos def, which is a short form for "most definitely".
7. Military Occupational Specialty (US Army)

M.O.S. can also be an abbreviation of a shitload of other terms that are mos def not used in slang. Including Metal-Oxide Semiconductor, Made of Steel, Marine Observation Satellite, Medical Outcomes Study, Member of Service, Mode Of Shipment etc.
Err... recently 2 London grrlz on aim:

A: "So tell me what happened after the party at MoS last night!"
B: "Ok, I was just about to leave when I met this really handsome MOS.
He told me his MOS is Infantryman in the US Army. Guys in uniform just turn me on!"
A: "Sweet, and then? Did you make out with him?"
B: "Yes! We had a good mos in the club and then he asked me if I wanted to come to his place, I said 'mos!'"
A: "Really, so did you...?"
B: "Yeah, when we got there, we started to have some real good MOS..."
A: "Wait, MOS!"
B: "Ok, ttyl ;)"
by 007 Bond November 20, 2006
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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
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