Green’s Dictionary of Slang

mine n.

also mines

(US Und.; latterly US black) myself, me; usu. as for mine.

[US]‘Hugh McHugh’ I’m from Missouri 24: The fence for mine.
[US]G.V. Hobart Jim Hickey 11: The woods for ours! Isn't this a bird of a place for a show to get stranded?
‘Peter’ [O.V. Boob] 23 Aug. [synd. strip] Nothin’s too good for a boob — society for mine.
[UK]B.E.F. Times 20 Jan. (2006) 163/2: ‘Well,’ said Ferdy [...] ‘Its oats for mine.’.
[US]N. Putnam West Broadway 21: ‘Now, what you want is some Russian stuff,’ he began. ‘Hold on!’ I says. ‘No Russian stuff for mine!’ .
[US]C.B. Booth ‘Mr Clacksworthy Within the Law’ Detective Story 13 Aug. 🌐 Mebbe he’d like t’ be stuck out here in this pocket-edition of a town, hearin’ the crickets sing [...] The roarin’ city fer mine!
[US] in T.I. Rubin Sweet Daddy 57: Why should I care? I got mine.
[US]L. Pettiway Honey, Honey, Miss Thang 79: I got into fights with girlfriends of mines.
[US]Rayman & Blau Riker’s 81: I fought for mines.

In phrases

go for mines (v.) (also take care mines) [black var. on SE mine]

(US black teen) to look after oneself, to indulge one’s own interests.

Master P ‘Trick or Treat Whodi’ 🎵 Game Face [album] Nah, fuck the world, I’m about to go for mines / Cause I’m trapped in this dream like I’m trapped in crime.
D. Carter 7 Nov. 🌐 Y’know? I got to take care mines first.