FROTH (2)

Froth, v. t. [imp. & p. p. Frothed (?); p. pr. & vb. n.. Frothing.] 1. 1. To cause to foam.
2. 2. To spit, vent, or eject, as froth.
He . . . froths treason at his mouth. Dryden. Is your spleen frothed out, or have ye more? Tennyson. 3. 3. To cover with froth; as, a horse froths his chain.