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