Green’s Dictionary of Slang

(UK/US teen) money.

2013		K. Koke ‘Cold Roads’ 🎵 Not enough Gwop earned Shottin to get by.
2014		Perm ‘What's all the talk about’ 🎵 Niggas talk but don’t talk ‘bout gwop.
2016		Independent 5 Jan. 🌐 Many other [teenage] words belong to MLE—multi-ethnic or multicultural London English— [...] Among the most pervasive are bruv, mate, bare, fam, gwop, or peas (money), and chirpsin’, linkin’, and lipsin’—flirting, dating, and kissing respectively.
2021		Central Cee ‘Gangbiz’ 🎵 Was young when I up and left, was broke, no gwop.