The best damn poptart cat that shits out rainbows. Anyone who wants to experience its greatness should type "nyan.cat" in the search bar
NYAN NYAN NYAN NYAN!!!! - Nyan Cat
by Herr Taco April 26, 2011
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
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
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
A cat pooping out a rainbow through space

its an addicting song
lyrics:
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

Repeat till you die
Nyan cat: nyan nyan nyan nyan nyan nyan nyan nyan nyan nyan nyan nyan nyan nyan

Me:YAY *Japaneese laugh and eats pocky*
by alessmax May 15, 2011
A symbol of internet meme of a poptart cat flying through space.
You just got nyan'd by Nyan Cat `·.,¸,.·*¯`·.,¸,.·*¯;::;‹ᵒᴥᵒ )
by DragonHunter1234567890 May 26, 2011
Nyan Cat is a looping video depicting a cartoon cat with a poptart attached to his back and flying through space while singing a repetitive "NYAN NYAN NYAN" sound and leaving a rainbow trail.

The video became a viral internet meme in YouTube.

ORIGIN:
The origin of such meme it's believed to be in the "Buttered Cat Paradox" which states that a buttered bread will allways land buttered side down and a cat will allways land on their feet, so attaching a buttered bread (or a poptart) on a cat's back will cause an anti-gravity effect making the cat to float indefinitly. (This doesn't explain the NYAN NYAN sound, but I believe that was added to the video just to make it cute... and annoying)
- What would happen if I tie a buttered bread to a cat's back?
- You'd get a Buttered Cat Paradox!! just like the Nyan Cat
by exacrom January 04, 2013

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