1 definition by Joe12112

Top Definition
Somebody who is so mainstream they need defining by a new word.
Calling them mainstream is out of order to mainstream kids.
Oh dear, he likes the Kooks and wears pumps. He is so mainriver.
by Joe12112 March 03, 2009

The Urban Dictionary Mug

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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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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).

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