kiwi
noun [ C ] uk/ˈkiː.wiː/ us/ˈkiː.wiː/
(FRUIT)
(also kiwi fruit); (also Chinese gooseberry)猕猴桃，奇异果
an oval fruit with brown skin covered in hairs and bright green flesh
The skin of the kiwi is edible but I do not recommend it.
Fruit stands keep a steady stock of imported bananas, strawberries and kiwis.
(BIRD)
鹬鸵，几维（新西兰国鸟，喙长，不能飞）
a New Zealand bird, with a long beak and feathers like hairs, that cannot fly and that is the national symbol of New Zealand
The kiwi can detect other birds and animals on its territory and will readily attack them with its claws.
In the wild, only one in 20 kiwi chicks survives its first year.
(PERSON)
informal (also Kiwi)新西兰人
a person from New Zealand
I married a Kiwi and have very fond memories of when I lived in New Zealand.
It is most likely that the Kiwis adopted this expression from their British friends.