If you like to tell me more, you can do it quite safely; I'm no blabber, and I'm not a rascal.
Just as soon as a woman reads a book, she's got to talk highfurlutin' blabber.
He is no blabber, to divulge secrets committed to his bosom for security by confiding friendship.
blabber mid-14c., frequentative of blabben, of echoic origin (cf. O.N. blabbra, Dan. blabbre "babble," Ger. plappern). Blabbermouth first recorded 1936.