See blabber in Webster's New World Roget's A-Z Thesaurus II
verb
To talk volubly, persistently, and usually inconsequentially:
babble, chatter, chitchat, clack, jabber, palaver, prate, prattle, rattle (on), run on. (Informal) go on, spiel. (Slang) gab, gas, jaw, yak. Idioms: run off at the mouth, shoot the breeze (or bull). See words
noun
Incessant and usually inconsequential talk:
babble, blab, chat, chatter, chitchat, jabber, palaver, prate, prattle, small talk. (Slang) gab, gas, yak. See words
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