rm 

rm means retarded midget

kez: he called me a rm...? wat tht mean...?
sam: aaah, he called you a retarded midget...?!

rm by samantha chick a dee October 20, 2009

RM 

A man from Kpop by group BTS, and some believe that he might be a lightskin

“RM is definitely a lightskin, man!”

RM by Agust_d_infires_me September 28, 2018

RM 

Rootable Mother. An attractive Mother.

Your Mother is a RM.

RM by ??? May 4, 2004

RM 

'Rico Morenazo' in Spanish is a definition of Kim Namjoon, yeah

RM for president, RM is the cutest little baby and the sexiest model that i have ever seen.

RM by Tatiss January 20, 2019

RM 

Derived from sub-neclectigleniage from online partners and Animation Insider friends; Abbrev. for "The Red March", a username from said Forums of Animation Insider.

Definition: The coolest person on AIM. WOOYEAH. 8|

"RM won't shut the fuck up." "Hah, as always."

"Gee, RM is awesome." "YUP."

RM by RM March 28, 2005

RM 

Rap Monster (Kim Namjoon) from K-pop band "BTS". ^^

RM is so hot!

RM by Jimins_jamless_princess July 21, 2017

rm 

rm is a shortened version of room.

person 1 - wanna play among us?
person 2 - yh but i gotta clean my rm first.

rm by mvkcyla on instagram October 5, 2020