Also called frog spit.a frothy secretion found on plants, exuded by the young of certain insects, as the froghoppers, and serving as a protective covering.
2.
an insect that produces this secretion.
Origin: 1350–1400; ME cokkowespitle cuckoopint; so called from the spitlike secretion found on the plant and thought to be left by the bird
[koo-koo-spit, koo
k-oo-] 