crīso or crisso, āvi, 1,
v. n., to move the haunches (in mal. part.; of a female, as ceveo of a male), Lucil. ap. Non. p. 19, 26; Juv. 6, 322; Mart. 14, 203; Auct. Priap. 19, 4 Büch.; cf. Charis. p. 260 P.; Diom. p. 293 ib.; v. Lachm. ad Lucr. vol. 2, p. 276 sq.