When something is the absolute opposite of lit or fire and you are asked if you like it, this is the response to not liking that thing.
Jimmy- Hey bro, did you like Taylor swifts new album? It was fire.
Jules- heckin’ nah
Frankie: Sup brah
Steve: Not much bro chi minh.
Frankie: Dats tight, wanna hit dis bong?
Steve: Nah dah, I'm already blazed. And I fucked your sister just now, going back for seconds in a sec.
Frankie: Nah dah, don't tell me that shit.
Some real fuck up or green shii happened
Oh nah that’s outta pocket
When there is something very relatable, and or you want to agree with your mans.
"yo bro I just robbed the deli"
"nah w"