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The sound a japanese cat makes. Much like the American 'meow'.
cat in america: meow, meow

cat in japan: nyan, nyan
by Krystin S April 14, 2008
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2
It's the sound of boredom. It plays when boredom is lurking.
John: I'm Bored.
Out of nowhere: NYAN NYAN NYAN NYAN NYAN NYAN NYAN NYAN NYAN NYAN NYAN NYAN NYAN NYAN NYAN NYAN NYAN NYAN NYAN NYAN
by dchnyan June 27, 2011
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An interjection often used by fangirls or chibi like art to express satisfaction, joy or any gentle happiness.
-Aww, this chibi is so cute!

-*Nyan!* ^_^
by RockCandy15 October 16, 2006
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The most kawaii word from 2010 from a self demotivational and excruciatingly stressing video on youtube called 'Nyan Cat'
Bob: Hey Joe, have you seen Nyan cat? NYAN NYAN NYAN NYAN NY...
Joe:*Shoots Bob in the testicles*
by LostPotato462 January 02, 2015
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From the popular video "Nyan Cat".

Usually used numerous times in comments on YouTube videos, especially on the "Nyan Cat" video.
Person #1 OMG! LOL =D
Person #2 NYAN NYAN NYAN NYAN NYAN NYAN NYAN
by Nyancat• August 21, 2011
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After the character from K-ON! Azusa Nakano won the saimoe
2010.The campaign made a poster titled "YES WE NYAN" instead of "YES WE CAN"
The word "Can" is replaced by "Nyan"
While "Cant" is turned into "Nyan't"
Boy A : Im envy at Tom's guitar skills...
Boy B : Yeah me too..he nyan play the guitar so well that even
I nyan't keep up with him....
by YueTheClow November 15, 2010
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