What is another word for babblemouth?
Pronunciation: [bˈabə͡lməθ] (IPA) 
The term "babblemouth" refers to someone who talks excessively or incessantly, often without much sense or purpose. If you're looking for more refined or polite ways to describe such a person, there are several alternatives to consider. For example, you might call them a chatterbox, blabbermouth, or motormouth. Other possibilities include loquacious, garrulous, voluble, or talkative. Some synonyms may also suggest negative qualities, such as being overly opinionated, nosy, or intrusive. Regardless of which term you choose, it's always good to exercise tact and diplomacy when discussing someone's communication style.
