Top Definition
menstrual ass to mouth. Coined by John A Parks IV of Austin Texas circa 2008. To receive oral sex after poking a menstruating girl vaginally as well as anally.
that drunk whore gave me an M.A.T.M. . i think im going to vomit
by mrparks September 25, 2009
Mom-Ass to Mouth.
Guy 1: Dude that girl's got such a Mom Ass.
Guy 2: Yeah I here Joey is giving her MATM.
by Joey Crawfish December 03, 2010
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