jabber
/ˈdʒabə/
verb
[no object]
Talk in a rapid, excited, and often incomprehensible way.
noun
mass noun
Rapid, excited, and often incomprehensible speech.
Origin
Late 15th century: imitative.
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Jaycee listened without paying any real attention and let Marcia ramble on, jabbering about her day. They were good friends.