Green’s Dictionary of Slang

(Aus.) to swindle.

1837		‘Juggling Johnny’ in Blackwood’s Edin. Mag. 785: My jinking, slinking, sly-boots Johnny / You’re a great charlatan.
1906		Sun. Times (Perth) 21 Jan. 4/7: Know ’ow ’e got ’is brass ? Jinkin’ [...] ’E jinked me for a tenner at the Cup meetin’ at Doodlakine ten year ago.
1914		N.Z. Truth 4 July 4/5: Johnson, the jinking ‘John’, may consider himself lucky.
1936		C. Drew ‘Wazoff’ in Bulletin (Sydney) 29 July 28/4: Brusher [...] only jinked him for a fiver when handing him his percentage.
1988		McGill Dict. of Kiwi Sl. 63/1: jink to swindle; originally to take all the tricks in a game of ‘forty-fives’; c.1920.
2003		McGill Reed Dict. of N.Z. Sl. [as cit. 1988].