Bonza is an uniquely Australian word, meaning excellent, attractive, pleasing, remarkable or wonderful. For an Australian to call something bonza is considered high praise indeed, but where does the word come from?
It seems to have entered use around 1900-1905. The first time it was used in print, with the alternative spelling of bonzer, seems to be from the great Australian poet C. J. Dennis, in his 1915 poem Songs of a Sentimental Bloke:
This ev’nin’ I was sittin’ wiv Doreen,
Peaceful an’ ‘appy wiv the day’s work done,
Watchin’, be’ind the orchard’s bonzer green,
The flamin’ wonder of the settin’ sun.
Synonyms in Australian are bottler and ripper.
The word bonza probably entered the Australian vernacular from the Spanish word bonanza, by way of American English.
Bonza Tales, therefore, are tales of good fortune for people who deserve it.