Definition of fair dinkum adjective from the Oxford Advanced Learner's Dictionary

     

    fair dinkum

     adjective,adverb
    adjective, adverb
    BrE
     
    ; NAmE
     
    (Australian English, New Zealand English, informal)
     
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  1. 1used to emphasize that something is genuine or true, or to ask whether it is It's a fair dinkum Aussie wedding. ‘Burt's just told me he's packing up in a month.’ ‘Fair dinkum?’
  2. 2used to emphasize that behaviour is acceptable They were asking a lot for the car, but fair dinkum considering how new it is.