What is "poke borax"

alt. 1 (context intransitive Australia New Zealand often with "at" English) To impart false information in an attempt to mislead. 2 (context intransitive Australia New Zealand often with "at" English) To ridicule. vb. 1 (context intransitive Australia New Zealand often with "at" English) To impart false information in an attempt to mislead. 2 (context intransitive Australia New Zealand often with "at" English) To ridicule.