JM

An acronym for the word Jerk Move. See Jerk move.

Ughh...Mark is so dumb, he just pulled a JM on me.

by Kagebunshin March 6, 2009

JM

Junior Mafia

"JM motherfuckers!" from Puff Daddy's famous Outtro to Notorious BIG's "Who Shot Ya?," which, when it was (mis)interpreted by 2Pac and Suge Knight, started the East Coast/West Coast rivalry.

by Callumlikeiseeum October 7, 2010

JM

N.

An entity or group of individuals that slay pussy at parties and have sex with many women (notorious in New York City)

On New Years, JM got with 18 girls combined.

by Suavvay May 26, 2010

JM

To be defensive overly so, and to never admit one was mistaken

My Friend Josh was being so JM the other day, what a dumbass...
Stop being so JM, it was just a joke

by Raypture June 27, 2009

JMS

Jack My Swag. Made popular by Jenna Rose in her song "My Jeans".

Hahahaha, JMS.

by Trazzle May 22, 2011

JM

To confuse people

Girl1: So you <3 MJ? Michael Jackson
Girl2: Yeh I guess, although its JM. ;)
Girl1: Who's JM?

Girl2: My lover. Lover

by Sx<3x June 11, 2011

JMS

JUGGALO MOB SQUAD 916 OP

oak park nigga!

you roll wit da JMS?

hell yeah!

down wit da clown 4 life!

by lette4life[OP] March 31, 2008