verb

talk in a long-winded way without making very much sense.

she began blathering on about spirituality and life after death

prattle,babble,chatter,twitter,prate,gabble,jabber,go on,run on,rattle on/away,yap,jibber-jabber,patter,blether,blither,maunder,ramble,drivel,yak,yackety-yak,yabber,yatter,witter,rabbit,chunter,natter,waffle,slabber,mag,twaddle,clack,twattle