definition of
blab

[1] #1 blab v. [spill the beans, let the cat out of the bag, talk, tattle, peach, babble, sing, babble out, blab out] divulge confidential information or secrets; "Be careful--his secretary talks". wn

[2] #2 blab v. [chatter, piffle, palaver, prate, tittle-tattle, twaddle, clack, maunder, prattle, gibber, tattle, blabber, gabble] speak (about unimportant matters) rapidly and incessantly. wn