What is another word for flap jaw?
Pronunciation: [flˈap d͡ʒˈɔː] (IPA) 
"Flap jaw" is a derogatory slang term used to describe someone who talks excessively or nonsensically. There are several more polite synonyms for this term which can be used to describe someone who may be prone to rambling or speaking too much. "Chatterbox," "blabbermouth," or "windbag" are all terms that can be used to describe such a person. Some less offensive synonyms can include "talkative," "loquacious," or "verbose." It's important to remember that while we may all come across someone who we may consider to have a flap jaw, labeling them as such can be hurtful and insensitive.
