Green’s Dictionary of Slang

mallowpuff Maori n.

[mallowpuff, a biscuit brown on the outside and white inside]

(N.Z.) a Maori who is not committed to Maori culture.

[NZ]McGill Reed Dict. of N.Z. Sl. 132: mallowpuff Maori Maori perceived as soft on maoritanga or less than committed to Maori culture, from the biscuit that is brown on the outside and white within. From 1980s.