Top Definition
common term used by insecure teens trying to conceal talking about masturbating. Often used as a code word.
So dude I was doing the Big M and then my grandma walked in and scared the living jizz outta me.
by Sand Strom August 04, 2009

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A subtle term for masturbation, used when you don't want to outright say that you are going to go masturbate.
"Be right back, I'm going to do a little of the big M."
by Suzi January 07, 2004

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

The Urban Dictionary Mug

Your favorite word on a white mug.

Create a mug

The Urban Dictionary Mug

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

Buy the mug

The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

Buy the t-shirt

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