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An 8-bit cat that has a strawberry pop tart as its body that flies around space shitting out rainbows.
Last night, I witnessed the sheer awesomeness that is nyan cat on YouTube for the first time. Never before has my mind shitted so many bricks before.
by JimboWales May 09, 2011
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9
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
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10
The world's most lovable (Or annoying) cat! A Nyan Cat is a cat head with a strawberry poptart for a body. It floats through space whilst shooting rainbows from it's ass. Also know as the "Poptart Cat"
Guy: Hey dude, check out this awesome thing I found!
*Enters "Nyan Cat" in Youtube*
Guy: I love this!
Other Guy: OMFG THIS IS SO ANNOYING. TURN IT OFF NOW.
by Larcondos April 28, 2011
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11
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
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12
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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13
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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14
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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