rdm 

Abbreviation for roadmen. A well known groupchat on twitter. They tend to invade the timeline and create a tradition like Lai Day a day where you drink Lai Tea.

I really want to be part of the rdm groupchat, they seem to be really close and are amazing friends.

rdm by rdmsupremacy October 23, 2020

RDM 

When your nan randomly dick slaps your mum.

Oh, that guy totally got RDMed, he's so depressed now!

RDM by Asdf November 4, 2014

rdm 

Abbreviation for former football player now manager Roberto Di Matteo.

RDM should be given another chance in the premier league.

rdm by d0m3 May 2, 2011

rdm 

Short for Ronald D. Moore.

Often used on forums and websites when referring to him.

He is widely known for creating, writing, and producing the smash-hit re-imagining of Battlestar Galactica.

RDM sure has some stuff up his sleeve for season 4... or better atleast...

rdm by Travis Parker April 18, 2007

RDM 

RDM is a term in Garry’s Mod for “random death match” that can just mean killing someone in GMod

Gun Dealer: *kills someone attacking him*

12 y/o Mingebag: RDMRDMRDMRDM

RDM by MrTaxi117 September 20, 2021

RDM 

n - 1. abbreviation for "Riddim Dance Music"
2. a heavy genre of dance music, formally known as riddim
3. EDM for headbangers
v - 1. to headbang and make heavy bass music

2. to get wid it with riddim

Can u RDM?
This track sounds RDM as fuck, bro.

RDM by Aleistia March 15, 2019

RDM 

RDM Is a term usually used in roleplay multiplayer servers, Like Gmod DarkRP Servers, Which means "Random Death Match", When someone randomly kills another person for no valid roleplay reason.

A: Dude, can you stop RDMing?
B: It was self defence!

RDM by chipzeydude242 August 27, 2025