Okay, everybody else's definition of MOS is wrong. They are all stupid. Here is the real explanation: When a man loves a woman very very very much, they engage in an act called M. O. S. MOS stands for Mutual Oral Sex and is extremely pleasurable. Also see 69, Something that is awesome, the shit, the awesome, the best thing ever, etc.
Jennifer: Hey Austin, wanna MOS?
Austin: I like men.
Jennifer: Oh.
Jennifer: You don't know what MOS is, do you?
Austin: No. *Looks sad*
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Short for MOFO, which is short for Mother F'er... Used when somebody is being extremely MOFO-ic, and think they're a bad aaah from the skreets.
What up NuggA?
Aww BiT.. You just a MO!
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Short for 'moron'
That guy talking into an N-Gage looks like a mo.
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Someone or something that sucks, is annoying, or is frustrating. See also moped.
You told my boyfriend I hate him? You're such a mo!
Guy 1 : I just lost my job.
Guy 2 : What a mo.
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When someone is taught something and deliberately does it there own way in spite. This often leads to disaster.
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Derived from the term "Homo" or "Homosexual" whereas the "Ho" beginning is used to describe the woman in a relationship with the gay man, subsequently named the "Mo"
Angela is the ho, and Sean is the mo.
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: an ugly witchy molestor- male or female - typically of the pedophile type
"Yeah my great aunt and uncle are both mo mo's" ๐
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