"Fush and chups" - New Zealand. "Feesh and cheeps" - Australian
If you want to tell Aussies and kiwis apart, listen for "Chance" and "Dance".
Kiwis will say the 'a' like in the word "aren't", whereas Aussies will say it like the 'a' in "ants".
Much more discrete to ask about dancing than fish and chips ;)
"Fush and chups" - New Zealand. "Feesh and cheeps" - Australian