Green’s Dictionary of Slang

concluded, finished, usu. in the phr. (that) job’s jobbed.

1840		Marryat Poor Jack 139: So that job’s jobbed, as the saying is.
1847		De Quincey Secret Societies in Works (1863) VI. 240: ‘Then’, said Pyrrhus, ‘next we go for Macedon; and after that job’s jobbed, next, of course, for Greece’ .
1864		Webster Amer. Dict. Eng. Lang n.p.: To job work.
1896		G.F. Northall Warwickshire Word-Book 120: That job’s jobbed, as the woman said when she jobbed her eye out.