next, adj. — Green’s Dictionary of Slang

next adj.

[the ‘next big thing’]

(UK black) new, exciting.

2015

www.reddit.com/r/hiphopheads Grime Terminology Guide 🌐 Next - New, exciting/A word used to generally stress the next word or concept (very contextual) (e.g. next hype).

In compounds

nextman (n.) (also next brer)

(UK black) an unimportant third party; also synon. for an unspecified ‘other(s)’.

2017		theculturetrip.com ‘Guide to London Slang 10 Jan. 🌐 Next man – someone who isn’t involved, a random person who thinks they are relevant enough to join your two-way conversation.
2020		G. Krauze What They Was 18: Chicken wasn’t on stuff, wasn’t involved in any of the wickedness, he was just some next brer from South Kilburn .
2020		G. Krauze What They Was 27: She ripped all the posters of Mobb Dep [...] and next rappers off my bedroom wall.