What is another word for runs the mouth?
Pronunciation: [ɹˈʌnz ðə mˈa͡ʊθ] (IPA) 
The phrase "runs the mouth" is often used to describe someone who talks too much or says things they shouldn't. There are many synonyms for this expression, including "blabbermouth," "chatterbox," "gossiper," "windbag," "jabberer," "yakker," "prattler," "motor-mouth," "rambler," "raconteur," and "talkative." All of these words imply that the person in question talks excessively or without regard for what they are saying. While some people may find these phrases insulting, they can be useful in situations where you need to describe someone who won't stop talking, whether it's a coworker, friend, or family member.
