As for strange Aussie words, try this lot. I'm sure some of our Aussie posters can add a few more. This seems to be from a Queenslander, and their a strange breed anyway!!
A
amber fluid - beer
arse over tit - fall over
arvo - afternoon
award wage - minimum rate of pay
B
back o'Bourke - back of beyond, middle of nowhere
bail up - hold up, rob
bail out - leave
Balmain Bug - (also known as Moreton Bay bug) an estuarine horseshoe crab closely related to the shovel-nosed lobster
barbie - barbecue
barra - barramundi (prized fish of the north)
battler - hard trier, struggler (the outback is full of 'great Aussie battlers')
beaut, beauty - great, fantastic
bikies - motorcyclists
billabong - waterhole in a dried-up riverbed
billy - tin container used to boil tea in the bush or the outback
bitumen - asphalt, surfaced road
black stump - where the back o'Bourke begins
bloke - man
blowies - blowflies
bludger - lazy person, one who won't work and lives off other peoples money
boomerang - a curved flat wooden instrument used by Aborigines for hunting
boozer - pub
bottle shop, bottlo - liquor store
brumby - wild horse
bush - forest, wild and uncultivated country
bushbash - to force your way through pathless bush
bushranger - Australia's equivalent of the outlaws of the American Wild West (some goodies, some baddies) - Ned Kelly was the most famous
bushwalk - to walk or hike through the bush
C
camp oven - large cast-iron pot with lid, used for cooking in an open fire
chinwag - chat, to have a conversation
chook - chicken
chunder - vomit
clobber - clothes
cooee - call for greeting someone at a distance in the bush
corroboree - Aboriginal festive dance
D
damper - bush loaf made from flour and water and cooked in a camp oven
dead-set - without a doubt
digger - Australian or New Zealand soldier or veteran
didjeridu, didgeridoo - cylindrical wooden musical instrument played by Aboriginal men
dingo - indigenous wild dog
dinky-di - the real thing
dodgy - something suspicious and underhanded is going on
drongo - foolish or worthless person
droving - moving livestock a considerable distance
dunny - outdoor lavatory
E
earbash - talk non-stop
esky - portable ice box (brand name)
F
fair go! - give me a break
fat chance - little to no chance
flagon - 2 litre bottle (of wine, port, etc)
fossick - hunt for gems or semi-precious stones
from arsehole to breakfast - all over the place
G
galah - noisy parrot, thus noisy idiot
garbo - person who collects your garbage
g 'day - good day, friendly Australian greeting
good on ya - well done
grog - general term for alcoholic drinks
H
homestead - the residence of a station owner or manager
hoon - idiot, a show-off, who drives a vehicle in a noisy fashion with little regard for others
I
icy-pole - frozen lolly water or ice cream on a stick
J
jackaroo - young male trainee manager on a station
jaffle - sealed toasted sandwich
jillaroo - young female trainee on a station
jocks - men's underpants
joey - young kangaroo or wallaby
jumbuck - sheep
K
kiwi - New Zealander
knackered - exhausted, very tired
L
lamington - square of sponge cake covered in chocolate icing and coconut
lollies - sweets, candy
M
mad as a cut snake - insane, crazy; also crazy with anger
mate - general term of familiarity, whether you know the person or not
matilda - swag
mozzies - mosquitoes
muster - round up livestock
N
nick off - go away
no worries - she'll be right, that's ok
O
Oz - Australia
P
paddock - a fenced area of land, usually used for livestock (paddock's can be huge in Oz)
pal - mate
perve - to gaze with lust
piss - beer
pissed - drunk
pissed off - annoyed
postie - mailman or woman
pull your head in - tell someone to mind their own business
Q
R
rapt - delighted
ratshit (R-S) - lousy
ridgy-didge - original, genuine
road train - multi-trailered semi truck
S
scallops - fried potato cakes (Queensland), the edible muscle of certain molluscs (North Queensland), shellfish (elsewhere)
scrub - stunted trees and bushes in a dry area; a remote uninhabited area
semi-trailer - articulated truck
sheila - woman, sometimes derogatory
singlet - sleeveless shirt
snag - sausage
squatter - pioneer grazier who occupied land as a tenant of the government
station - large sheep or cattle farm
stubby - 375ml bottle of beer
sunbake - sunbathe
swag - canvas-covered bed roll used in the outback
swaggie, swagman - itinerant worker carrying his possessions in a swag
T
ta - thanks
takeaway - fast food or a shop that sells it
tea - evening meal
thongs - rubber sandals
tinny - 375ml can of beer; also a small aluminium fishing dinghy
true blue - dinkum, the real thing
tucker - food
U
up your nose - something that annoys you
up shit creek without a paddle - things are going wrong for you
ute - utility, pickup truck
V
vegies - vegetables
W
walkabout - lengthy walk away from it all
waltzing matilda - to wander with one's swag seeking work or a place to settle down
wharfie - dock worker
whinge - complain, moan
X
Y
yabbie - small freshwater crayfish
yahoo - noisy and unruly person, hoon
yakka - work (from an Aboriginal language)
yobbo - uncouth, aggressive person
Z