Meaning of grog-on in English:

grog-on

noun

informal Australian, New Zealand
  • A heavy drinking session.

    • ‘the square is used mainly for late-night grog-ons’
    • ‘The party-goers despise those who take grog-ons seriously.’
    • ‘We're all going up to the hills for a grog-on tomorrow.’
    • ‘Authorities take a dim view of grog-ons.’
    • ‘The staffers attend grog-ons on Wednesday nights.’
    • ‘He had to put the others to the test: an invitation to a grog-on.’
    drinking bout, debauch