I.a smacking or clucking with the tongue, as a sign of approbation, Juv. 6, 584; “on occasion of lightning, as a religious ceremony,” Plin. 28, 2, 5, § 25; “of a similar sound,” Mart. 7, 18, 11.
poppysma , ătis, n., and poppys-mus , i, m., = πόππυσμα and ποππυσμός,