Definition of "Ghu"

Ghu

/ɡuː/

proper noun
1. (dated, fandom slang, humorous) A mock deity of early science fiction fandom; a fannish ghod.
  Quotations
  Neofans and old ones too/Shout the praise of the Great Ghod Ghu,
  1956 November-December, Walt Leibscher, “Go, Fan, Go”, in Science-Fiction Five-Yearly‎, number 2, page 32
  "Great Ghu!" said Dorothy. "Why, this must be the True Fandom that I've read about! Where everyone is a fan, even the animals and machines and all!"
  1959, Terry Carr, Ron Ellik (as Carl Brandon), “The Scarecrow”, in The BNF of Iz‎, archived from the original on 21 July 2013
  “Why in the name of Ghu should we want to?” asked Thak in amazement.
  1991, Peter David, The Rift, page 189