The origin of the word "goof" and "goofing"

I just read on the internet that the origin of this word "goofing" is not known. Well let me tell you internet: you should bone up on your Wampanoag vocabulary. In a history of Woods Hole or, near abouts, a book on the Falmouth tribes, it said that goofing meant "to speak with the spirits through a hole in the stone wall."