M-d 

A title for a forum Moderator that originated in MySpace Religion and Philosophy forum. Much like Jews often write "God" as "G-d" out of respect and reverence, many R&P regs have been known to do the same for their M-derators.

Blessed be M-d, King of the R&Pverse, who deleteth spam from the interwebz. May His mighty banhammer fall swiftly upon the heads of trolls.

M-d by R&Peep August 17, 2010

M-D 

M-D is short for Marie-Dominique, she's a former hip-hop singer. Now she "teaches" kids to "speak" French. In order to accomplish this goal she leads a dictatorship.

Gawe beetje chillen bij M-D (Marie-Dominique)

M-D by Porxer September 20, 2018

M&D

M&D is a shortened version of “Maddie and Damien.” Two adorable characters in a story being created by an adorable person. They’re like Bonnie and Clyde and stick by each other’s sides no matter the amount of danger they’re in.

“Well if it isn’t M&D...” Said William, before stepping into Maddie’s trap.

M&D by BarfBelly77 September 3, 2019

M.D. 

Abbreviation for Mart Dawg. Title given to someone an overly attractive person who is one of a kind in who they are and what they do. Specifically, M.D.s have a doctorate in slaying pussy and eating ass. They are also great friends and will give you sexual favors when you are feeling down.

Friend 1: Yo Mart Dawg, I just got a call back from the hiring manager, I didn't end up getting the job.
Friend 2 ( M.D. ): Sorry to hear that bro, everything okay? Come over here and let me give you a brojob.

M.D. by poopoopeepeepenis February 26, 2021

M'd

A term parallel to owned but relating to a work situation, where M stands for manager.

A manager has hijacked a colleague on his way out to lunch for a "quick" question:

"oh man Ed just got M'd!"

M'd by barba_papa76 August 27, 2008

M.D 

M.D is the main ingredient in Ecstasy, it is taken in pill form and gives you the experience of Ecstasy not to the fullest but with less consequence.

Guy 1: Yo, we taken that Ecstasy tonight?
Guy 2: Nah, we taking M.D not as bad as Ecstasy.

M.D by Ethan123 March 23, 2011

M/D 

Most Definatly it is wrote M/D has to be captolized very important

ima go to the store u want sum slushi?

M/D!

M/D by tyler6765 March 18, 2008