dinkum

 
Pronunciation: /ˈdɪŋkəm/
Australian/NZ informal

adjective

  • (of an article or person) genuine, honest, true: a real dinkum bloke

adverb

  • really, truly, honestly.

Phrases

fair dinkum

used to emphasize or seek confirmation of the genuineness or truth of something: Eric and his assistant are fair dinkum magicians ‘Burt’s just told me he’s packing up in a month.’ ‘Fair dinkum?’
used to emphasize that behaviour complies with accepted standards: they were asking a lot for the car, but fair dinkum considering its list price

Origin:

late 19th century: of unknown origin