22
N.A (said 'N-A') stands for not acceptable. It is mainly used as an interjection or adjective to describe things that are not socially acceptable, or actions that are weird, bizarre, or simply inappropriate in a give situation.

That guy just smacked my ass. N.A!

Ugh. Look as those two making out during class. N.A!

It is so NA for you to wear that outfit tonight.
by K,K&S April 29, 2007
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23
Naturally aspirated, reffering to cars that draw air directly into the cylinders rather than using compressed air from a turbocharger.
by thaabomb May 12, 2005
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24
When lifting up a middle finger, Hong Kong Cantonese tends to utter the word 'Na' or 'Naa' together. Its origin is unknown, but doing middle-finger without saying "Na" is like a woman turning pale.
1. Naa!! (with middle-finger)
by Yau February 02, 2005
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25
Shortly, "na" is another way to say and the abbrevitation of "now".
"Girl you walk away and i have no one to lean on, 'na' whoz gonna lend me a shoulder to cry on"

Fuck it! 'na' Im gon' show her whoz da loser.

I'd love to stay here witchu but... 'na' I really have to go Fucker... :)))
by hci July 03, 2006
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26
(Shannan) Yo dude she has amazing curves

(Jake) Yeah bull i know dude she has an NA.

by aajps October 20, 2008
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27
Abbreviated form of canned tuna. Word commonly used in hasty situations when there is insufficient time to say the entire word, "tuna".
Damn it Randy! You burned the goonch! Gimme some 'na, and mind the mloop!
by Hunding July 12, 2011
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28
when a white girl named chelsea has an ass that looks like a black persons butt.

stands for niger ass
Brandon: damn Cesar! look at chelsea's fine NA!
by jenny July 13, 2004
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