Top Definition
1. A universal word which can be used to express many different feelings including excitement, dismay, anger(incorporated with a death stare), aggression, and sometimes it is nothing more than a reason to hear ones own voice
2. What squirrels say
3. A crayfish who lives with Stache
$. Just say it and you will fall in love with it
1. Nyahh!!
2. From squirrel A to squirrel B: "Nyahh!"
3. Nyahh!!
by CAck Master June 25, 2003

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A simple, fun word that has several meanings. Soe examples: "I don't care", "Go away." (when given with a flick of a hand), an unexpected, completely logical answer to ANYTHING, "leave me alone", or occasionally, "I like pie."
For some reason, saying this is debate class gets you detention, although I find it almost always makes more sense than anything those other losers are saying.
person A: you're an idiot.
person b: NYAHH!
by Amaya Sakaruta_ June 30, 2010

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.

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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).

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The native sound of a kid who lives in the library and has pale skin and never likes to be in the sun.
*Enters library* 'NYAHHH!!' *and gets attacked by pale skin kids!
by Pasty Haters: ME, ANTRON February 24, 2005

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