Definition of illywhacker in English:

illywhacker

noun

Australian
informal, dated
  • A small-time confidence trickster.

    • ‘The ‘illywhacker’, Herbert Badgery, contests meliorist notions of national history.’
    quack, mountebank, sham, fraud, fake, humbug, impostor, pretender, masquerader, hoodwinker, hoaxer, cheat, deceiver, dissembler, double-dealer, double-crosser, trickster, confidence trickster, cheater, swindler, fraudster, racketeer
    View synonyms

Origin

1940s: of unknown origin.

Pronunciation:

illywhacker

/ˈɪlɪˌwakə/