Nyahtism

A very serious mental disorder in humans that causes them to believe they are a cat. Symptoms include meowing, odd cravings for fish or Friskies treats, sudden licking of self or others, reaching under doors, and hiding in boxes. Nyahtistic people have special needs, like belly rubs or scratches on their rear; they may bite if you run their belly for to long

Did you hear about Sean? I heard he has Nyahtism. His mom said he was caught trying to attack the mirror

by That Jaspyr Dude March 13, 2017

Nyahr

A word which one uses to express himself being lively or hyper.

Also,
A really cool word.

"Nyahr! i'm so damn hyper!"

by Bamber December 23, 2003

Nyahaha!

The cool way of laughing; the way Peter Griffin laughs on Family Guy.

Nyahaha, sweet.

by Spike9123 March 20, 2004

NYAHHHH

nyyah

noun, verb, NYAHHHH’ing, NYAHHHH’ed

noun-

A sound made by Lord Voldemort in extreme anger.

A noise of great discomfort or anger: Lord Voldemort likes to Nyahhhh

verb-

To nyahh: His noseless face nyahhhh’ed all through the trailer.

NYAHHHH!

by wibblylever June 16, 2011

ja'nyahia

The realest person you will ever meet you can always trust her . She will always give you good advice . She will be 1 of your most loyal friends

Ja'Nyahia is a cool person.

by KINGGUWOP January 25, 2018

NYAHH

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

NYAHH!

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_ July 5, 2010