Wiktionary
prep.phr. (context Australia informal idiomatic English) In an extremely isolated place, remote from populated areas; in the middle of nowhere. ''Typically used to refer to outback areas.''
Wikipedia
Beyond the Black Stump is a novel by British author Nevil Shute. It was first published in the UK by William Heinemann Ltd in 1956.
Beyond the Black Stump is an Australian comic strip written by Sean Leahy. It debuted in 1988 and won the "Best Comic Strip" at the 2003 National Coffs Harbour Cartoon Awards and the "Comic Strip Cartoonist of the Year" at the Australian Cartoonist's Association's Stanley Award the same year.
The strip follows a cast of Australian wildlife who deal with the day-to-day stresses of marriage, parenting and friendship.
Usage examples of "beyond the black stump".
Working as a constable out beyond the Black Stump had taught him that there were two kinds of men: bad men, and bad men to cross.