poppysma

poppysma, ătis, n., and poppys-mus, i, m., = poppusma and poppusmos, 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.