What is another word for running mouth?
Pronunciation: [ɹˈʌnɪŋ mˈa͡ʊθ] (IPA) 
"Running mouth" is a phrase often used to describe someone who talks too much or says things they shouldn't. There are several synonyms for this phrase, including "chatterbox," "motor-mouth," "blabbermouth," and "gossipmonger." A chatterbox is someone who talks excessively and may ramble on without regard for the listener. A motor-mouth is someone who talks rapidly and perhaps incessantly. A blabbermouth is someone who can't keep a secret and tends to reveal private information in conversation. A gossipmonger is someone who spreads rumors or shares information about others without their permission. Each of these synonyms captures a slightly different aspect of the trait of talking too much, but all can be used to describe someone with a running mouth.
