What does "froth" mean?

Froth: Any empty, senseless show of wit or eloquence; rhetoric without thought. Johnson. It was a long speech, but all froth. L'Estrange.

Additional senses

  1. 2.Light, unsubstantial matter. Tusser. Froth insect (Zoöl.), the cuckoo spit or frog hopper; -- called also froth spit, froth worm, and froth fly. -- Froth spit. See Cuckoo spit, under Cuckoo.
  2. 3.To cause to foam.
  3. 4.To spit, vent, or eject, as froth. He . . . froths treason at his mouth. Dryden. Is your spleen frothed out, or have ye more Tennyson.
  4. 5.To cover with froth; as, a horse froths his chain.
  5. 6.To throw up or out spume, foam, or bubbles; to foam; as beer froths; a horse froths.

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