Some accurate posts in this thread but speaking as a younger dude, we really don't be using New York slang like that no more. That's more so the older generation. We still say "Facts" and some people still say "Son" but you got people in Oklahoma using that shyt now, lol. I can only speak on the 973 (The Oranges, Newark, Irvington) but nikkas say "bruh/bro" or "scoob" more than anything.
973 Slang
Mookin' (High)
Mooked Down (Super high)
fukked Down (fukked up, example: Bruh, you seen that nikka timbs? Them shyts was lookin fukked DOWN)
Burn Down On Him (Catch him slippin)
You Dealin' with F&E'z (F&E'z = feelings and emotions, Heard this in Newark on a few occasions)
Went Wheels (You did ya thing)
Breezy (Female)
Hikin (Roasting)
I'm bout to gun you (I'm about to roast you)
Trillz (Good shyt)
Bally (Weed)
Scoob (My nikka)
You Don't Want No Sauce (You can't fukk with me)
Bout Dat Action (Ready for whatever)
Know Dat
Unked Out ('Flabby and Sick')
To The Attic (Exceeded expectations)
Stain (Respect)
You Feel Me Like (My number 1 indicator I use to tell if somebody is from North Jerz or not. nikkas use this phrase excessively, lol)
Tall Cans (Timbs, Newark slang)
Her shyt Dumpin (Her ass was fat)
Where The Movement At (What's the spot for tonight?)
Kick Up (Turn Up)
Talkin Maccy (Talkin Crazy, Newark slang)
Wassup Dready
What Up Creep (Paterson slang)
I'll probably remember more later but that's real 973 slang (the 2000s version). A lot of hoods got slang specific to them too on top of all that but that's the basics. When I talk to my little cousins they'll probably put me on some new shyt I never heard of, lol.