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 9, 2011
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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 16, 2011
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the act of watching "nyan cat" for 10 hours or longer
Don't disturb him he's plugged in!
He's programming facebook pages?
NO! He's doing the nyan challenge, he's 6 hours in!
My what a strong willed man...
by UM North Quad July 6, 2011
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a really fucking annoying virus that earrapes you and you can never delete it. help me.
person 1: bruh why does your laptop keep splurting out the nyan cat theme
person 2: idk man its a virus that I cant ever delete. its nyan catting.
by ihaveanyancatvirus July 24, 2020
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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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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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When you or a friend say a highly offensive joke that might offend other people and realizing you or they fucked up.
Jason: Extremely offensive joke involving Asians
Everyone: Shocked
Me: 😬 oooooooooo that was a bad idea, you just pulled a nyan
by DefinitelyNotAGuyYouKnow September 1, 2019
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