1 B2 idiomatic informal
To carelessly reveal secret or private information by talking.
"He blabbed out the surprise party to Maria without even realising what he was saying."
separable
blab out
B2 informal separable transitive
To reveal a secret or private information carelessly and without thinking.
In plain English
To talk too much and accidentally (or carelessly) tell a secret.
What does "blab out" mean?
2 meanings, ordered from most common to least. Color-coded by CEFR level.
2 B2 idiomatic informal
To talk excessively and indiscreetly, revealing things that were meant to be kept private.
"Don't tell Jenny anything — she'll blab it out to the whole office by lunchtime."
separable
Usage tip
Informal and slightly childish in tone. Implies the speaker was untrustworthy or thoughtless rather than malicious. Often used when someone reveals a surprise or secret. Similar to 'blab' alone, but 'out' adds emphasis on the secret being fully exposed.
Words that pair with "blab out"
Natural word combinations native speakers use most often.
secret surprise news everything details plan
How to conjugate "blab out"
The five tense forms you'll use most often.
Base
blab out
I/you/we/they
3rd person
blabs out
he/she/it
Past simple
blabed out
yesterday
Past participle
blabed out
have + pp
-ing form
blabing out
continuous
Hear "blab out" in the wild
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