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..
by Racheal Collins December 25, 2005
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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."
by quintessential saget August 1, 2013
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1: Choclate candy.

2: Valium. Any member of the Benzo strand. Pills. (slang)
1: Mom, Can I have some M&M's?

2: Hey Dude, You got any M&M's for sale? (slang)
by Jerry S. October 7, 2006
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gay (short for male & male).
Let's get out of this sausage fest, it's totally M&M in here.
by Nick D April 1, 2003
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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
by B cef June 19, 2019
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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.
by mothafuka November 22, 2005
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masterbating maniac, someone who masturbates tooo much
Stephany needs to stop F**KING masturbating to andrew!
She is an m&m.
by andrew tran November 11, 2007
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