Green’s Dictionary of Slang

(Ling. Fr./Polari) to pay; thus parker from/with dinarly v., to pay one’s debts; reparker, to pay back.

1893		P.H. Emerson Signor Lippo 47: Have you parkered to the omer for your letties?
1906		E. Pugh Spoilers 5: Bli’ me! I’ll put you in your gaudy ’at if you don’t parker quick!
1912		E. Pugh City Of The World 270: Nunky parkers with a wrong ’un.
1914		E. Pugh Cockney At Home 37: I like the Birmingham people [...] They are nice people, sensible people, and they ‘parker from denarly’ without fuss.
1916		G. Squiers Aerbut Paerks, of Baernegum 14: I ’ad to parker up thaerteen an fower pence fer two fish and chips.
2019		P. Baker Fabulosa 296/1: parker 1. to pay. 2. to give [...] parker the measures to pay the money.
2023		R. Milward Man-Eating Typewriter 4: [M]olto sang guaranteed — or else all costs reparkered to you in full.
2023		R. Milward Man-Eating Typewriter 108: ‘[P]arker a feeli-omi a beyong’† [...] †Pay a young man a shilling’.