Green’s Dictionary of Slang

(Aus.) to spit; also as n., a glob of phlegm.

1988		McGill Dict. of Kiwi Sl. 56/2: hoick to spit, possibly from its sound.
1992		A. Duff One Night Out Stealing 87: Cricket sucks! Jube booming. Then he spat a big hoik on the floor.
2002		Macquarie Dict. Book of Sl. 🌐 hoick verb 1. to clear the throat and spit.