Green’s Dictionary of Slang

jack of adj.

[jack up v.1 ]

(Aus.) bored with, tired of.

implied in get jack of
[Aus]Truth (Sydney) 27 Jan. 5/4: I’m told [...] that the miners up Newcastle way are getting very ‘Jack’ of their Unions.
E. Dyson Gold Stealers 41: Oh, well, Twitter’s jack of it, an’ I don’t think it’s much fun .
[Aus]Sun. Times (Perth) 2 Oct. 4/7: And Brim’s, in London on his ‘ace,’/ Of Andrew Barr a trifle ‘jack’.
[Aus]Baker Drum vi. 50: He was clearly a bore and they were jack of him.
[Aus]W. Dick Bunch of Ratbags 140: I was jack of it.
[Aus]C. Bowles G’DAY 71: I'm jacka this. Larse time I come rownere.
[NZ]McGill Dict. of Kiwi Sl. 62/1: jack of rid of or weary of; eg ‘Would I like to be jack of those little twerps!’ c. 1890.
[Aus]Penguin Bk of More Aus. Jokes 440: The cocky was becoming jack of this.
[Aus]G. Seal Lingo 66: Other well-used World War II complaints still in wide use today included [...] to be jack of something, possibly everything, and a lot of (hot) cock used to describe anything felt to be nonsense.

In phrases

get jack of (v.)

(Aus.) to resent, to be bored with, to be fed up with.

[Aus]Central Qld Herald (Rocckhampton, Qld) 27 Dec. 27/4: Let him do the cooking and he’ll get jack of the work.
[Aus]Bulletin (Sydney) 18 Apr. 22/3: Six days after this as a steady thing, and his character, among the people on that block, was bad enough to command a three-guinea screw from the Salvation Army. He got ‘jack’ of the monotonous kind of life, so he handed in his resignation and left those parts.
[Aus]E. Dyson Spats’ Fact’ry (1922) 61: I swore off half-a-dozen little lovin’ wickednesses afore I got jack of it.
[Aus]F.J. Hardy Yarns of Billy Borker 139: Timetable got jack of it, after that, so when the truck came out [...] he took a lift back and left me there.
[Aus](con. 1930s) F. Huelin ‘Keep Moving’ 63: Another bloody meetin’ [...] I’m gettin’ jack of meetin’s.
[Aus]M.B. ‘Chopper’ Read Chopper 4 111: Listen Ron, I am getting a bit jack of this [i.e. petition-writing].