Usually means don't be a grass when used in a social setting. This can either be for illegal drug use or any type of controversial behaviour. Similar to how a brother or sister grasses you in for doing something bad to your parents.

Narc often means narcotics officer amongst gangs.
'Don't be a narc bro, elbowing Jimmy in the face was funny anyway he's a dick'
by AcidTabs August 9, 2022
Get the don't be a narc mug.
The affliction or nuccance of being related to or acting as an informant to authority figures.
I was treated like a narc plague. Classmates would be disrespectful to me in choir, and the teacher who was my mom called them out for it, then they got mad at me. Pricks.
by Goldybobblehead December 20, 2022
Get the narc plague mug.
A fart-narc is a friend who will share unfavourable stories about you, usually in order to bring other people together.

More simply a fart-narc is a friend who will narc your farts.
“I love Tim but is the worst fart-narc we know. Don’t tell him your business or he’s gonna make you sound five times worse to anyone who will hear it.”
by Yackitol November 7, 2022
Get the fart-narc mug.
A nice narc is a self-obsessed person but in a good sense. This person doesn't harm you in any way or form but would be aware of the things they do and would constantly praise themselves for the amazing things they have done. They would usually do this in front of people whom they are close to with the sole intention of irritating them.
Friend 1: "Bro, that place you suggested for the date turned out to be amazing. You are awesome"
Friend 2: "Thanks. I know I'm awesome"
Friend 1: "Dude stop obsessing about yourself"
Freind 2: "I Can't, I'm a nice narc"
by Shikarishibu January 24, 2022
Get the Nice Narc mug.
To suddenly fall asleep anytime anywhere or anyplace.
Donald: " Have you seen JR lately?" Ronald:" I saw him go into the honey bucket a few minutes ago. Hes probably narcing out."
by Knobnbobber May 31, 2018
Get the Narcing out mug.
Guy- The narc girl is coming over here to ask you about buying some dro for her friends, don't sell her nothing man you'll be the one getting busted. Her friends are all fuckin cops.
Guy's friend- Aight yo, good lookin out.
by Solid Mantis July 5, 2019
Get the Narc girl mug.
A really handsome, smart, honest and kind male from the gaming community Fearlessrp.net. Everybody loves him.
Damn you're starting to sound like a real mr. narc
by snarc March 17, 2018
Get the Mr. Narc mug.