Definitions
There is 1 meaning of the phrase
Blab Out.
Blab Out - as a verb
Divulge confidential information or secrets
Example: "Be careful--his secretary talks"
Synonyms (Exact Relations)
babble12babble outblab8let the cat out of the bagpeach12sing5spill the beanstalk8tattle6Example Sentences
"Don't blab out the surprise party plans!"
"He tends to blab out every secret he knows."
"Don't blab out the password to anyone."
"She couldn't help but blab out the gossip she heard."