Top Definition
mm
"Yes", "I agree" or "I hear you". It mimics the humming sound you make when you nod your head in agreement.
* Hey dude, can I ask you a question?
- mm
* Ok, here goes...
by Krytharn November 19, 2006

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m-m
More a sound than a word.

The oposite of "mhm".
It's negative, like "no", "hell no" or whatever similar.
d1: wanna catch a movie?
d2: m-m
d1: wanna get some food then?
d2: mhm
by Elliken April 20, 2010

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mm
Mutual masturbation
For more than one individual to masturbate whilst in the company of another/others doing the same. MM is an abbreviation of the words mutual masturbation.
by Diddley August 14, 2013

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M.M
Medical Marijuana
California is the only state where M.M is legal.
by MagentaKow February 02, 2009

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MULTIPLE MEN SYNDROME-when a woman/girl is juggling 2 or more men at the same time.
symptons-calling out the wrong names during sex,forgetting dates,showing up at the wrong guys house.
Hey girl,why do you look so tired?Its just because I'm suffering from M.M.S,I totally have all the symptoms!...
by Roni Coleman January 18, 2008

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mm
When two people sit next to each other and simultaneously give each other hand jobs.
Hey mate did you finger Tayla?
Yeah and she gave me an hand job!
So you guys mm'd!
by wozza June 04, 2015

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Soft and offensive. Just like you.

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MULTIPLE MEN SYNDROME-when a woman/girl is juggling 2 or more men at the same time.
symptons-calling out the wrong names during sex,forgetting dates,showing up at the wrong guys house.
Hey girl,why do you look so tired?Its just because I'm suffering from M.M.S,I totally have all the symptoms!...
by Roni Coleman January 18, 2008

The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Your favorite word on a white mug.

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The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt