Greek god of animal and vegetable fertility. He was represented in a caricature of the human form, grotesquely misshapen, with an enormous phallus. The ass was sacrificed in his honor, probably because it symbolized lecherousness and was associated with the god's sexual potency. His father was Dionysus and his mother was either a local nymph or Aphrodite. In Hellenistic times the worship of Priapus spread throughout the ancient world, and he was adopted as the god of gardens.