"Ran off at the mouth," also commonly referred to as "ran off mouth," is an idiomatic expression used to describe someone who speaks impulsively or excessively, often in a thoughtless or brash manner, without considering the consequences or relevance of their words. This phrase implies that the speaker is talking without restraint or control, perhaps divulging sensitive information or sharing strong opinions without filter.
The term "ran off at the mouth" is rooted in the metaphorical idea that words are uncontrollably pouring out of someone's mouth, much like a stream running off its course. It suggests that the individual lacks the ability to hold back or regulate what they say, resulting in potential negative outcomes or misunderstandings.
People who "run off at the mouth" may talk incessantly, monopolize conversations, or engage in irrelevant or superfluous speech. They may also divulge secrets, gossip, or make hasty and impulsive remarks, often leading to embarrassment, miscommunication, or conflict.
The phrase carries a negative connotation, suggesting that the person lacks tact, self-awareness, or social skills. Often used in informal or colloquial contexts, it expresses annoyance, frustration, or disapproval towards someone who speaks in an uncontrolled or reckless manner.
