simply a variation of the Englishslang verb, to cheek.
1874. Garnet Walch, `Adamanta,' Act ii. sc. ii. p. 27:
«I've learnt to chi-ike peelers.»
[Here the Australian pronunciation is also caught. Barere andLeland give «chi-iked (tailors), chaffed unmercifully,» butwithout explanation.]
1878. `The Australian,' vol. i. p. 742 :
«The circle of frivolous youths who were yelping at andchy-acking him.»
1894. E. W. Hornung, `Boss of Taroomba,' p. 5:
«It's our way up here, you know, to chi-ak each other and ourvisitors too.»