Green’s Dictionary of Slang

get off v.1

(US) to steal.

[US] in ‘Mark Twain’ Life on the Mississippi (1914) 459: [as spelt] ‘i hadn’t no more than got it off when i wished i hadn’t done it.’.
[US]H. Green Mr. Jackson 47: I got a yen to git off a poke every time i find myself in a crowd lately.
[US]‘Dutch’ ? (Pronounced Que) [ebook] Chuck turned around, wide-eyed, just knowing he had been caught. ‘Be easy, brah,’ Black smiled as he approached, ‘I ain’t the po-po. I’m just tryin’ to see what you trying to get off’.