shonky

 
Pronunciation: /ˈʃɒŋki/
Australian/NZ informal

adjective (shonkier, shonkiest)

  • dishonest, unreliable, or illegal, especially in a devious way: shonky political goings-on

noun

  • (also shonk) a person engaged in suspect business activities: we need to rid the building industry of these shonkies quickly

Origin:

1970s: perhaps from English dialect shonk 'smart'