A person born in New Zealand who embraces the country and shows so much patriotism that it becomes quite cringe worthy/annoying.
Superkiwi's are often quite blinded as to the benefits of other countries and like to make it known to everyone around them that they from New Zealand and that it is the best country in the world.
Person 1 - Hey, look at those two guys wearing 'I Love NZ' t-shirts, drinking Steinlager and doing a haka in the middle of Trafalgar square!
Person 2 - Yeah that's Sam and Steve - they are massive SuperKiwis.
Person 1 - Yuck.
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