Definition of "mouther" [mouth•er]

• A person who mouths (noun)

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• "A mouther was a person who didn’t get to sing but could only move his mouth and pretend."
• "But David Gregory is a weak-willed mouther of political twaddle who obviously prefers to use words like "exaggerates.""
• "The dangerously flawed Senator John Sidney McCain is one such duplicitous crybaby and poor-mouther."