Green’s Dictionary of Slang

shonk n.

also schonk, schonky
[? shonnicker n.; note RN shonky, a miser whose meanness is typified by their like of drinking but unwillingness to stand a round]

1. [20C+] a derog. term for a Jew or foreigner.

2. [1960s+] the nose.

3. [1980s+] (Aus.) a dishonest business person.