Lewis & Short

1. Prĭāpus, i, m., = Πρίαπος, Priapus, the god of Procreation; hence, of gardens and vineyards, where his statues were placed, Col. 10, 108; cf. Hor. S. 1, 8, 2; Verg. G. 4, 111; Ov. M. 9, 347; id. F. 1, 415; Juv. 6, 316; Sen. Const. 18, 3; cf. Vulg. 3 Reg. 15, 13 et saep.

  1. B. Transf.
    1. 1. Priapus vitreus, a drinking-vessel of obscene shape, Juv. 2, 95: siligineus, a cake of the same shape, Mart. 14, 69; Petr. 60.
    2. 2. A lecherous person, Cat. 47, 4; Ov. Am. 2, 4, 32.
      Hence,
  2. C. Prĭāpēĭus, a, um, adj., of or belonging to Priapus, Priapian: metrum, Diom. p. 512 P.
    Prĭāpēĭa, ōrum, n. (sc. carmina), a collection of poems upon Priapus, by various authors.