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blabbermouth
noun
Synonyms and Antonyms of blabbermouth
a person who talks constantly told the blabbermouth to put a lid on it Synonyms babbler, blabber, chatterbox, blowhard, cackler, chatterer, conversationalist, gabbler, gasbag, jabberer, jay, magpie, motormouth, prattler, talker, windbagRelated Words gossip, gossiper, talebearer, tattler, tattletale; blatherer, blatherskite; converser, discourser
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