Carl Jung Did Carl Jung really connect Pfluog and fuck fick It seems extremely far fetched without any basis in any sourced corpus Yet another possible etymology is from the Old High German word pfluog meaning to plow as in a field similiar pronunciation to fuk the sexual euphemism being obvious This is supported in part by a book by Carl Jung Psychology of the Unconscious A Study of the Transformations and Symbolisms of the Libido in which he discusses the primitive play of words and the phallic representation of the plough including its appearance on a vase found in an archaeological dig near Florence Italy which depicts six ithyphallic men erect penises carrying a plow