What does bosker mean?
Bosker is an informal adjective used chiefly in Australian and New Zealand English to mean excellent or first-rate. When someone describes a meal, a performance, a piece of luck, or a day as bosker, they are expressing wholehearted approval — this is something exceptionally good. The word belongs to the colourful family of mid-twentieth-century Australasian slang alongside terms like 'bonza' and 'ripper', and it carries a warm, breezy, distinctly colloquial tone rather than any formal register. While still understood across Australia and New Zealand, it is heard less often from younger generations and may strike modern ears as charmingly old-fashioned or nostalgic. For learners of English, bosker is best treated as a regional curiosity: a vivid, affectionate way to say 'top-notch' that instantly signals familiarity with Antipodean speech. It should be reserved for casual conversation, never formal prose.
adjectiveExcellent; first-rate; outstandingly good.
- (informal, chiefly Australian/NZ) Excellent; first-rate; very good indeed.
"We spent the afternoon at a bosker little beach café, watching the surf roll in."
"The weather was bosker for the whole of our camping trip."
"He reckons the new bakery down the road makes a bosker meat pie."
Bosker is one of those cheerful Australian slang words that can turn an ordinary compliment into pure sunshine — 'bosker' doesn't just mean good, it means gloriously good.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of bosker
Bosker emerged as slang in early twentieth-century Australia, with recorded use from around the 1910s onward. Its ultimate origin is uncertain; some lexicographers have suggested a possible link to British dialect or Romani sources, but no derivation has been firmly established, so its etymology remains obscure. It spread through Australian and New Zealand colloquial speech during the mid twentieth century before gradually falling out of everyday use.
How bosker is actually used
Bosker is informal and colloquial, used almost exclusively in Australian and New Zealand English. It carries a warm, enthusiastic connotation and is typical of mid-20th-century Aussie slang; younger speakers today may find it dated or quaint. It is not used in formal writing.
Easily confused with bosker
A busker is a street performer who entertains in public for tips, whereas bosker is an informal adjective meaning excellent.