The People Kiwictionary

Some are obvious, some are not, but all are quite commonly used. 
Antipode–a person from Australia, New Zealand, or South Africa
Aussie–a person from Australia
Kiwi–a person from New Zealand
Pom (Pommy)–a person from the UK, i.e. people who are English, Scottish, Welsh, or North Irish
Tall Poppy–someone who stands out from the crowd, i.e. a leader, someone who works hard, [...]

Interesting Pronounciations

Some of these are interesting, but some are down right confusing.
Cervical—-”Sir-vye-cull”
Jambalaya—”Jom-ball-uh”
Antigua—”Ann-tig-you-uh”
Subaru—”Sue-baa-roo”
Yes—”Yis”
Bear—”Beer”
Pen—”Pin”
For the microbiologists: Campylobacter-”Cam-pile-oh-back-ter”
You can actually listen to Bear and beer on this site.
http://faculty.washington.edu/dillon/PhonResources/kiwisounds/NewZealandPronunciation.html
Also, listen to the “here hair ear air” one. “Ear” and “air” sound exactly the same.

Bad Words and Bar Words Kiwictionary

Another installment of the Kiwictionary
These words are useful for finding your way around the bar, for telling someone off, or for telling stories about your time spent in a bar after one too many.

Bloody–friggin’, as in “He’s a bloody jafa.”
Bogan–a lame boy racer; a redneck; white trash
Boy racer–teenage guy with a souped up car who [...]

Definitions, A KiW-ictionary

biscuit–cookie
boot–trunk of car
brillant–awesome
caf–cafeteria
candy floss–cotton candy
car park–parking lot or parking space
chemist–pharmacy, where you buy drugs
chips–fries
courgette–zucchini
dairy–jiffy store or convenience store
eftpos–debit card
flash–fancy, high quality
flat–apartment
good on her–basically good for her, a compliment
holiday–vacation
hotdog–a kiwi version of a corndog, basically a hotdog dipped in fish-n-chips batter
jumper–sweater or sweatshirt
lolly–candy
loo–toilet
mate–buddy, friend
mobile–cellphone
partner–a person you are dating of the same or opposite sex
petrol–gasoline for car
pharmacy–where [...]