Abbreviation for Marriage Material. Rare term used by men referring to a women who is of such a high stature (looks/personality) that they would settle down and marry her. This women has the whole package. One of the highest compliments that a man could pay to any women.
*while at a club or party*
guy1 - Bro you see that chick over there, shes totally checking me out.
guy2 - Isn't your girlfriend here tonight?
guy1 - Yea but this one's definitely mm.
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