The gnashing mouth of the Medusa with its boar's tusks betrays these features most plainly, while the protruding tongue is obviously connected with the phallus... the serpents writhing round the Medusa's head are not personalistic—pubic hairs—but aggressive phallic elements characterizing the fearful aspect of the uroboric womb.
Neumann reads Medusa as the definitive symbol of the devouring uroboric Great Mother, her anatomical grotesquerie encoding the castrating, engulfing feminine at its most archaic and pre-personal level.
, The Origins and History of Consciousness (Princeton, 2019thesis