What is Not'n?
1.
(v.) when one is doing and/or says something that is farthest from chilling at that particular moment. Derived from the antreent phrase 'not chillin.' syn. 'you dont': 'chill more': Giants fans.
You're just chillin, trying to kick it with some females and what not; and some douche texts you "what's the goodie?!"
that fool is not'n.
See