Definitions
1.nounA police spy or informer.
2.nounAn unpleasant person, especially one who makes things difficult for others.
3.verbTo watch; to observe.
4.verbTo serve or behave as a spy or informer."“If you nark on me, I’ll rip your arms off,” said Tim to his brother, as he passed him a joint."
5.verbTo annoy or irritate."It really narks me when people smoke in restaurants."
6.verbTo complain."He narks in my ear all day, moaning about his problems."
7.verb(often imperative) To stop."Nark it! I hear someone coming!"