What does dinkum mean?
Dinkum is an informal Australian and New Zealand term meaning genuine, real, or honest, best known through the iconic phrase 'fair dinkum', which affirms authenticity or sincerity — as in 'a fair dinkum Aussie'. It can also function as a noun denoting solid, honest work or effort, and occasionally as an adverb meaning honestly. Though now inseparable from Australian national identity, the word's origins likely lie in English regional dialect: it has been linked to a Lincolnshire dialect word for work or hard labour brought to Australia by migrants in the nineteenth century, though its etymology remains debated. Dinkum carries warm, folksy connotations of straight dealing and unpretentious honesty, and it is used almost exclusively in casual speech. For outsiders, deploying 'fair dinkum' correctly signals familiarity with Australian culture; for Australians, it remains a proud marker of local speech.
Genuine, real, or authentic; honest and true.
"You can trust Tom — he's completely dinkum about wanting to help."
Almost always appears in the fixed phrase 'fair dinkum'; standalone adjectival use is rarer.
Genuine work or effort; hard graft.
"Building that fence by hand was proper dinkum."
This sense reflects the word's putative original dialectal meaning of 'work' and is now uncommon outside Australia.
'Fair dinkum' is so quintessentially Australian that it's practically a national catchphrase — yet its deepest roots may lie not Down Under but in the dialect of Lincolnshire, England.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of dinkum
The origin of 'dinkum' is uncertain, but the most widely cited theory traces it to a dialect word from Lincolnshire, England, meaning 'work' or 'hard work', which emigrants reportedly carried to Australia in the nineteenth century. An alternative derivation links it to Australian pidgin from a local Aboriginal language, though evidence for this is weaker. It became firmly established in Australian English, especially through the phrase 'fair dinkum', attested from the late nineteenth century.
Related word forms
How dinkum is actually used
Strongly informal and colloquial. The word is virtually inseparable from Australian identity and is often used playfully by non-Australians imitating the accent or culture. Outside Australia and New Zealand it may be unfamiliar to many speakers. 'Fair dinkum' functions as both a question ('Really?') and an affirmation ('Honestly!') depending on intonation.
Easily confused with dinkum
A dingo is an Australian wild dog, whereas dinkum is a slang adjective meaning genuine or authentic.