I’ve heard nackerd used, but people say it refering to drunk people. For example, at the Pub on Great Barrier Island: “Murray looks a bit nackerd.”

Shattered (like a mirror shatters) is used for saying tired. “You look absolutely shattered!”

I have heard “Did you indicate?”, meaning, “Did you use your turn signal?”

As for high school students, I discovered the lack of sophomore year, and I had to learn the phrase “year 10″ to use instead.

I have not heard any of the other phrases here in New Zealand, but that doesn’t necessarily mean the vocabulary isn’t used here. Overall, I think you are correct and it is easy to say Aussie English and Kiwi English are quite similar.

Your list inspired me to think of some Aussie phrases too, let me know if these are Kiwi words/phrases too
*Heaps = tons
*If you’re “ripped” you’re high (in the drug-induced state), not “really strong”
*Nackerd (sounds like Nahk-auhd) = tired
*Auker = true-blue
*It’s not a shopping cart it’s a shopping trolly
*Babies ride in prams not car seats
*Girls have fringe, not bangs
*Turn indicator, not turn signal;
*You muck about, not screw around (unless you’re a sex worker)
*High school students go on “schoolies,” not “spring break”
*There is no Freshman, Sophpmore, etc… in high school, it’s year 9, 10, etc…
*”Far out” is still a saying that is widely used, as well as, “Ya reckon?”
*Aluminium (Al-U-min-ee-um), not aluminum.

Those are all I can remember now, but if I think of more, I’ll post ‘em glad to read (and see) you two are doing well!!

And as a Kiwi would say, “Catch ya later MUM.”