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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 14, 2011
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15
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 28, 2011
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16
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 05, 2011
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17
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 22, 2011
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18
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 01, 2011
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19
Some odd creature pooping out a slightly discolored rainbow while repeatedly screaming nyan to an addictive tune. Can be used as an insult
Yu fucking nyancat!;! Stop screaming mommy

Look at that bird chirping through the air. Hell, it could be Nyancat cat
by strakerak December 29, 2011
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20
her song goes like this:
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 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 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 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
Person 1: "I have nyan cat as my ringtone!"
Nyan cat fan (Person 2): "I have a nyan cat ringtone too! aaaand a keychain , pillow, costume..." 5 yrs later "... aaaand a blanket."
Person 1: *Snores
via giphy
by Anime Person March 17, 2020
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