MDM 

Short for Melodic Death Metal.

Dark Tranquility is killer MDM.

MDM by Aniket Patni April 4, 2008

MDM 

Major Dick Move

1.Doing something pretty stupid
2. Bad move

Guy 1 :Oh my god!
Guy 2 : What?
Guy 1 : I just did the biggest MDM ever!!
Guy 2 : What did you do?
Guy 1 : I forgot my mom's birthday

MDM by Datboiarab June 20, 2010

MDM 

Mid Day Masturbation. The greatness of settling down in the middle of the day when that nagging broker will not cease. You sneak off to a work bathroom, your bedroom, anywhere really, and bust a load. Then you go back to your normal routine as if nothing amazing just occurred.

Rob: Jeff, why are you smiling?
Jeff: I just MDM'd in the basement.
Rob: You lucky son bitch!

MDM by Ghandi Von wilson February 3, 2012

MDM 

The amount of time for one minute in the "Drabbant System"
(roughly 7 minutes)

"That teacher talked for two MDM's"

MDM by Cold Ass Honky February 12, 2013

MDM 

Madam or ma'am is a title for a woman. It is derived from the French madame, the equivalent of Mrs. or Ms., and literally signifying "my lady." The plural of madam in this sense is mesdames. The French madame is in turn derived from the ancient Latin mea domina meaning honored mistress of the home.

Madame Butterfly

SMS Q: Have U my k?
SMS A: Yes MDM!

MDM by Gustty October 23, 2007

MDM 

million dollar man

you’re screwed up and brilliant you look like a million dollar man (mdm) so why is my heart broke? i don’t know

MDM by yeetldryeet August 27, 2020

mdm 

Gang /People living in peoples heads on a daily

mdm are living rent free in peoples heads Sadge

mdm by TrollDespair May 22, 2022