Top Definition
The listener-proclaimed "underground" music that EVERYONE knows about and listens to which in turn makes it roughly mainstream. Understream is the gray area between Mainstream and true underground.
Understream:
Curren$y, Mac Miller, KiD INk, Big Sean, J. Cole, Nipsey Hussle, French Montana, etc.
by B.Mathers January 11, 2011

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The Urban Dictionary Mug

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The Urban Dictionary T-Shirt

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the small ditch under the tip of your penis; funnels sperm when masterbaiting.
Man was that understream flowing with cum!
by [Ak]47> March 25, 2009

The Urban Dictionary Mug

Lotsa space for your liquids.

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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