froth at the mouth

idiom

Definition of froth at the mouth

1 : to produce froth from the mouth because of illness or excitement The dog was frothing at the mouth.
2 informal : to be very angry about something She was frothing at the mouth with rage.

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“Froth at the mouth.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/froth%20at%20the%20mouth. Accessed 25 Nov. 2020.

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