NAC 

Niggas Actin Crazy

Person 1: "those niggas were wild last night."

Person 2: "that's cause they're NAC"

NAC by justgivemeaname757 April 26, 2009

Nac 

Something a lot of Next Recovery members do to get know in the community of call of duty.

Omg I just f*cking naced on the kid across the map

Nac by SubtoBeachy February 1, 2018

Nac 

A nicotine snack.

"Hey you wanna go to the bathroom for a nac?"

Nac by 221235HnC May 11, 2020

nac 

used online for bullitens and blogs short for "Not a Chain" because chain letters are posted a lot

(Bulliten title) "OPEN THIS! (nac!)"

and then inside they post what they really want to say

nac by DannyFannyDAnimal March 17, 2008

nac 

Niggaz are always creepin..

Creepin around with all kinds of different chicks. NAC ing

nac by dilf July 20, 2006

nac 

A "cute" guy who is tall and lives on a farm

I love nac!RD loves nac.

nac by Rapunzelgirl April 30, 2008

Nac 

Abbreviation for nasty ass cunt.

She's a real nac.

Nac by TheUNnac January 10, 2010