When I first got to Australia, I thought I had some issues with my  English because I had a hard time understanding what people are saying. 6  months later, I still have some difficulties but it's getting easier.  This is my Canadian translations to some of their commonly used words,  as I understand how they are used.. Thanks to everyone who provided  input into the list!!
Blokes= guys
Schooner                               = pint of beer
Nugget  =                                  no real translation, just anyone  who's fat and short. 
Unit =                                         someone who's big, not necessarily fat, just big
Tucker  =                                   food
Spewin =                                    angry
Reckon =                                  you bet
Arvo =                                        afternoon
Feral                                       = wild/ nasty
Heaps =                                      lots
Thongs =                                   flipflops
Servos =                                      service stations
no dramas = no probs
Ta =                                          Thanks
No worries =                             same as no dramas
lollies =                                      jujubes/ candy
Mackers =                                 MacDonalds
ambos =                                    ambulance
tomato sauce =  ketchup
Waggin off =                    call a sickie/  slack off the day (be careful of using that one, it can sound inappropriate)
Ginga  = ginger red
ranga =                                    Red, originally came from orangatan
figjam =                                   F***ing I'm good just ask me
footy                                     = Aussie rule football
Roos  =                                   kangaroos
and  my absolute favourite: Bogan = no exact translation but similar to our  rednecks
For my surgical friends
catspaws  = sens retractor
diathermy = bovie
hemostat  = snap
nibbler = rouguer
plaster trolley =  cast cart
So if I are using different  terms when I get back to Australia.. this might help a bit..