Wikipedia
Wekufe
The Wekufe also known as huecufe, wekufü, watuku, huecufu, huecubo, huecubu, huecuvu, huecuve, huecovoe, giiecubu, güecubo, güecugu, uecuvu, güecufu; is an important type of harmful spirit or demon in Mapuche mythology. The word wekufe comes from the Mapudungun word wekufü meaning "demon, outside being".