foam at the mouth

Idioms and Phrases

Be extremely angry, as in She was foaming at the mouth over the judge's ruling . This hyperbolic term uses the verb foam in the sense of “froth at the mouth,” a usage generally applied to animals such as horses and dating from about a.d. 950. [1400s]

Example Sentences

Mr Parsons, of the South Western Ambulance Service, said when he checked Ms Skripal she had a “slow heart rate” and was “foaming at the mouth”.

From BBC

The partner of Novichok poisoning victim Dawn Sturgess found her laying fully clothed in the bath “convulsing and foaming at the mouth,” an inquiry has heard.

From BBC

Shortly afterwards, Mr Yousaf posted: "Racists foaming at the mouth at my very existence."

From BBC

Honestly, I think Trump could be foaming at the mouth and it still wouldn’t change their minds about wanting him back in the White House.

From Salon

Beachgoers witnessed animals seizing, foaming at the mouth and dying due to a toxic algae bloom.

From Los Angeles Times