The wechuge (pronounced "way-chu-gay") is a man-eating creature or evil spirit appearing in the legends of the Athabaskan people.
In Beaver (Dane-zaa) mythology, it is said to be a person who has been possessed or overwhelmed by the power of one of the ancient giant spirit animals—related to becoming "too strong". They are often described as tall and half human-half beast. These giant animals were crafty, intelligent, powerful and somehow retained their power despite being transformed into the normal-sized animals of the present day. Wechuge is a punishment for bad deeds, making the person lose itself mentally and physically. Wechuge is a demonic curse, it's never satisfied after killing and consuming people no matter the amount.
Referenced in Pet Sematary