Top Definition
A word used as an onomatopoeia, often having a sexual connotation. It can also be used for a sound of techno, or as a catch phrase.

It is often substituted with oonst, which means the same thing.
"Man, he went all unst unst unst on her last night."

"Did you hear that music? It was all unst unst unst."
by A.R.M. aka Zandra August 30, 2008

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A way of 'party-boying'.
Commonly used over the internet.
Bob: UNST! UNST! UNST!
Jim: He is party-boying all over the place!
by KJDGA April 30, 2008

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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).

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Something Nicole Cherch likes to do.
Can be also referred to as "Runst, Sunst, Eunst, Punst, etc."
I unsted this girl the other night.
by JMoooo January 23, 2011

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.

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.

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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