Simple past tense and past participle of blather.(verb)
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Use "blathered" in a sentence
"The more she blathered on about her problems, the more he knew it was time to take her off his list."
"The way that we're living now is good - we're not driven by a desire to get a raise or climb up the ladder because we're pretty much at the top of what we're doing already, he says, and as one-quarter of the most blathered and blogged about band in Britain, he's got a point."
"And then again, we all -- even those of us who still use and like the term "spirituality" -- are embarrassed by and have disdain for those who bandy about terms such as "spirituality" as a conveniently fashionable and corrupt excuse for sensory overload or anything else they can't articulate: as in a coked-up celebrity who blathered on about her amazing spiritual experience while meditating to the full moon."