A cat that beams subliminal messages into your brain, slowly devouring it. Once under Nyan Cat's spell, you may only say: Nyan. When saying Nyan, you may notice that your tongue forms a L shape, that is because you are completely under the control of Nyan Cat. You will also find that you begin to eat a lot of pop tarts to make up for the fact that your body is not one. There is no cure for this yet, and if you happen to be tricked into watching Nyan Cat, good luck.
Person #1: Hey man, have you ever heard of Nyan Cat? Somebody wanted me to watch it.

Person #2: Nyan. Nyan nyan nyan nyan nyan.

Person #1: Ok....
by Suick Qilver June 15, 2011
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1. The popular .gif
2. The popular song
3. The popular website that counts how long you've been "nyaning"
I went on nyan.cat and I've nyaned 6000 seconds

Nyan Cat is the best .gif in the world!
by bamsauce May 6, 2011
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Nyan cat is the epitome of annoying. Play it loudly next to friends and watch them suffer. Results may vary from insanity, bleeding from the ears, hysteria, excessive violence and/or painful death.
YOU: I love nyan cat! ::turns on nyan cat::
FRIENDS: AAAAAGGGGHHHH!!!!! ::dies painfully::
by Nyancat/Chuck Norris lover April 29, 2011
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A cat traveling through space with a poptart as the body, with a rainbow coming out of its ass. Just says nyan over and over. It's cute at first, but gets annoying. Go to nyan.cat to see how long you can stand the nyan-ing for.
Nyan cat is annoying.
by blahburbuttox April 23, 2011
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The creepiest cat ever to come to the internet. A cat with the body of a poptart flying through space with a catchy song featuring the word "nyan".
"YO BRO WTF IS THAT?!"
"its nyan cat."
NYAN NYAN NYAN NYAN NYAN NYAN NYAN NYAN NYAN NYAN NYAN NYAN NYAN NYAN NYAN NYAN NYAN NYAN NYAN NYAN NYAN NYAN NYAN NYAN NYAN NYAN NYAN NYAN NYAN NYAN NYAN NYAN NYAN NYAN NYAN NYAN NYAN NYAN NYAN NYAN NYAN NYAN
by B0S5 May 2, 2011
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1. A cat shoved in a pop tart flying through space shitting rainbows
2. The true meaning of homosexuality
Whats better than a double rainbow, a double nyan cat.
by captain falco November 15, 2011
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A internet cat video. The video is four minutes of absolute horror, (or cuteness depending of how you see it) of a cartoon cat with a body of a poptart running through space and shitting out rainbows. The music is a upbeat Japanese song that goes "nyan,nyan,nyan,nyan,nyan,nyan....". There is also extended versions made by fans. One of them is even 59:57 minutes long. You can find all of these videos on youtube by searching up "Nyan Cat"
random girl: OMG that nyan cat video is soooo cute right!
guy: no its annoying as hell.
by Purpl3n1nja April 27, 2011
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