Green’s Dictionary of Slang

(UK Black) financial profit.

2014		Perm ‘What’s all the talk about’ 🎵 They’re smoking all of their bludclart prof.
2018		Unknown T ‘Mad about Bars’ 🎵 I switched plans, now I’m making prof.
2021		Central Cee ‘Day in the Life’ 🎵 Can’t be breaking even no more, brodie, I must see prof’.