What is the meaning of Froth?

Foam.

Unimportant or insubstantial talk, events, or actions; drivel.

The idle rich.

Highly speculative investment.

To create froth in (a liquid).

(of a liquid) To bubble.

To spit, vent, or eject, as froth.

(literally) To spew saliva as froth; (figuratively) to rage, vent one's anger.

To cover with froth.

Source: wiktionary.org