M.M 

Medical Marijuana

California is the only state where M.M is legal.

M.M by MagentaKow February 3, 2009

m&m 

Nice melted chocolate covered candy treat with peanuts or plain. Comes in different colors as like blue,green,red ect; Used to eat; or to be eaten off of a person; or nice treat to have when hungry.

Those M&M's were quite a treat
That M&M was good off of you Martinez..

m&m by Racheal Collins December 28, 2005

M & M 

Abbreviation for mutual masterbation. The act of two people manually masterbating each other to climax.

"Did you snack dings last night?"

"Naw, we just M & M d' on each other."

M & M by quintessential saget September 3, 2013

m&m 

gay (short for male & male).

Let's get out of this sausage fest, it's totally M&M in here.

m&m by Nick D April 1, 2003

M&M 

Someone who is over weight or fat and appears to be circular like a m&m chocolate candy.

Person 1: Ava is so fat
Person 2: Yeah, she’s a m&m

M&M by B cef June 19, 2019

M & M 

A multi colered candy that melts in your mouth, not your hand.

I asked Katherine if i could have a M & M and she said no.

M & M by mothafuka July 20, 2008

m&m 

masterbating maniac, someone who masturbates tooo much

Stephany needs to stop F**KING masturbating to andrew!
She is an m&m.

m&m by andrew tran December 5, 2007