blather
[verb]
Synonyms: babble, blabber, drivel, drool, gabble, prate, prattle, twaddle, waffle
[noun]
Synonyms: nonsense, balderdash, blatherskite, bosh, bunkum, double-talk, flapdoodle, hokum, jazz, twaddle

[TahlilGaran] English Synonym Dictionary ▲

blath‧er /ˈblæðə $ -ər/ verb [intransitive]
[Date: 1500-1600; Language: Old Norse; Origin: blathra]
to talk for a long time about unimportant things
—blather noun [uncountable and countable]

[TahlilGaran] Dictionary of Contemporary English ▲