You have to follow the sport (Cricket) and the Ashes series between England and Australia to get these but these are a few I've loved today:
What do you call an Australian with a bottle of champagne? A waiter.
What did the spectator miss when he went to the toilet? The entire Australian innings!
What do you call an Australian with 100 to his name? a bowler
and my personal favourite of the last 24 hours:What do you call a world class Australian Cricketer? Retired