In Chile, it means that it is not genuine or pure mapuche. It refers to the Conqueror, to the invader, the thief, who came from afar. By extension it refers to white, non Mapuche Chileans, Argentines (or Creoles) or mestizos.
White man. Huinca. The Mapuches. And the Araucanians refer to whites, calling them Huincas eg. The Huincas. They are not welcome to my Ruca!