<P> In Australia and New Zealand, the words "fish and chips" are often used as a shibboleth to highlight the difference in each country's short - i vowel sound (ɪ). Australian English has a higher forward sound (i), close to the y in happy and city, while New Zealand English has a lower backward sound (ɘ), a slightly higher version of the a in about and comma . Thus, New Zealanders hear Australians say "feesh and cheeps," while Australians hear New Zealanders say "fush and chups ." </P> <P> In the UK, waste oil from fish and chip shops has become a useful source of biodiesel . The German biodiesel company Petrotec has outlined plans to produce biodiesel in the UK from waste oil from the British fish - and - chip industry . </P>

History of fish and chips in new zealand