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Laughing like a Japanese cat person also known as a "Neko"

Neko's are seen in Japanese Anime
Person 1: *Says a funny joke*

Person 2: Nyahaha!
by DudeRicky0253 January 08, 2012
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A word used by the dessert queen.
The Dessert Queen joyously nyahaha'ed as she proceeded to peg her friend Luna in the face with a fruitcake.
by LaKinks April 23, 2018
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1: the 'cool' way of laughing. The way Peter Griffin laughs in Family Guy.

2: Something Hootowls say. They say this because once, in a concert while performing "Alligator Sky", at the end of the song, Adam (if you do not know who this is, you obviously didn't click on Hootowl ) made an inhuman (adorable) noise that is believed to be spelled "Nyahaha".
1: Nyahaha, that's cool.

2: OMG I love Adam so much!!! LOL NYAHAHA
by LittleOwl1226 February 27, 2012
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