After finishing the quiz (which I thoroughly enjoyed) I wondered how well my children and grandchildren would perform.
Carol I suspect not nearly as well. As a person of a certain age, i would have undoubtedly been biassed to the language of the mid to late 20th Century. The influences of television and social media has, I believe, promoted more international and less parochial language.
You did well. I have to confess until I did a bit of research I would not have known what a nannygai or Coolgardie Safe was. Pademelon was also unknown to me before it was suggested by June but it was a dream to think up alternative fictional meanings for.
Perhaps we should challenge one of our younger members to develop a Social Media Language Quiz. I suspect I would perform miserably.