Blab. n.s. [from the verb.] A teltale; a thoughtless blabber; a treacherous betrayer of secrets.
The secret man heareth many confessions; for who will open himself to a blab, or blabbler? Bacon, Essay 6.
To have reveal'd
Secrets of man, the secrets of a friend,
Contempt and scorn of all, to be excluded
All friendship, and avoided as a blab. Milton's Agonistes.
Whoever shews me a very inquisitive body, I'll shew him a blab, and one that shall make privacy as publick as a proclamation. L'Estrange.
I should have certainly gone about shewing my letters, under the charge of secrecy, to every blab of my acquaintance. Swift's Letters.