Someone who is acting like a gay smartass.
Joe: It looks like he is saying kiss me kiss me.

Chris: Smart Ass mother fucker.
by the cool Ratman April 03, 2007

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Top Definition
Very similar to Bad Ass Mother Fucker only instead of being a Bad Ass your a Smart Ass (and not a bad kind of smart ass).
guy 1 "John can do particle nuclear physics in his head while high!"

guy 2 " Yeah John is one Smart Ass Mother Fucker"
by Jesus37295 December 31, 2009

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.

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