M. = Male
M.D.R = Minimum Daily Requirement
M.G.B = My God Bless
M.H.O.T.Y = My Hat's Off To You
M.I.A = Missing In Action
M.I.LF = Mother I'd Like To Fuck
M.M.D = Make My Day
M.M.D.P = Make My Day Punk
M.O.D = Ministry Of Defence
M.O.O.S = Member Of the Opposite Sex
M.O.S.S = Member (s) Of the Same Sex
M.P.D = Multiple Personality Disorder
M.P.F.B = My Personal F**k Buddy
M.S = Multiple Sclerosis
M.Y.O.B = Mind Your Own Business
