The phrase "running off at the mouth" means to talk too much. The spelling of this phrase can be explained using IPA phonetic transcription. "Running" is pronounced /ˈrʌnɪŋ/, while "off" is pronounced /ɒf/. "At" is pronounced /ət/, and "the" is pronounced /ðə/. Finally, "mouth" is pronounced /maʊθ/. The phrase is commonly written with hyphens, as "running-off-at-the-mouth". It is important to use correct spelling in writing and communication to ensure accurate and clear communication.
"Running off at the mouth" is an idiomatic expression that refers to talking excessively or without restraint, often in a verbose or boastful manner. It is typically used to describe someone who talks continuously and in a talkative, uncontrolled, or even arrogant manner. The phrase implies that the person is speaking at length without considering the impact of their words or showing any regard for the feelings or opinions of others.
The origin of this phrase can be traced back to the metaphorical image of words flowing endlessly from one's mouth, paralleling the uncontrolled and fast pace of someone running away or escaping from a situation. It captures the idea of not being able to control one's own verbal output, leading to disregard for decorum, diplomacy, or relevance in conversation.
When someone is said to be "running off at the mouth," it suggests that they are perhaps talking too much, divulging too much information, bragging, or simply blabbering incessantly. The phrase often carries a negative connotation, as it denotes a lack of self-control, impulsiveness, or egotism in the speaker. In some cases, it might also imply that the person is speaking without considering the consequences of their words or without providing any substance in their discourse.