Froth, v. t. [imp. & p. p.Frothed (?); p. pr. & vb. n.. Frothing.] 1. To cause to foam.
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. To cover with froth; as, a horse froths his chain.