DM

1)abbreviated term for Dumbass

1b)ussually used to cloak the term dumbass from figures of authority

1) Dude 1:Marco gave his e-mail in an internet chat.
Dude 2: That DM

2) The librarian said she would stab me if I called him a dumbass, I called him a DM instead

by Mongoosegangsta February 28, 2010