The Collaborative International Dictionary
froth spit
Froth \Froth\, n. [OE. frothe, Icel. fro[eth]a; akin to Dan. fraade, Sw. fradga, AS. [=a]freo[eth]an to froth.]
The bubbles caused in fluids or liquors by fermentation or agitation; spume; foam; esp., a spume of saliva caused by disease or nervous excitement.
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Any empty, senseless show of wit or eloquence; rhetoric without thought.
--Johnson.It was a long speech, but all froth.
--L'Estrange. -
Light, unsubstantial matter.
--Tusser.Froth insect (Zo["o]l.), the cuckoo spit or frog hopper; -- called also froth spit, froth worm, and froth fly.
Froth spit. See Cuckoo spit, under Cuckoo.