Definition of goom in US English:

goom

noun

Australian
  • (especially in Aboriginal English) methylated spirits or other cheap alcoholic liquor.

    ‘although drunk on goom, he was a fit man’
    • ‘He also had some goom, didn't he?’
    • ‘A group of about four Aboriginals are sitting at a table drinking from a cask. Goom. You know, Metho.’
    • ‘He set a shot glass and a bottle of goom on the table.’
    • ‘Brandy was his favourite drink after gin, then came whiskey and finally goom.’
    • ‘He had been drinking cask wine and goom.’

Origin

1960s: perhaps from Gabi-gabi and other Aboriginal languages gung ‘water, alcohol’.

Pronunciation