[ blab ]
/ blæb /

verb (used with object), blabbed, blab·bing.

to reveal indiscreetly and thoughtlessly: They blabbed my confidences to everyone.

verb (used without object), blabbed, blab·bing.

to talk or chatter indiscreetly or thoughtlessly: Don't confide in him, because he blabs. She blabbed so much I couldn't hear the concert.


idle, indiscreet chattering.
a person who blabs; blabbermouth.
Also blab·ber [blab-er] /ˈblæb ər/.

Origin of blab

1325–75; Middle English blabbe (noun), perhaps back formation from blaberen to blabber; cognate with Old Norse blabbra, German plappern Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for blabber

  • You learn a lesson in any case: To blabber is human, to button divine.

    Your Horoscopes|Starsky + Cox|May 21, 2011|DAILY BEAST
  • If you like to tell me more, you can do it quite safely; I'm no blabber, and I'm not a rascal.

    In the Year of Jubilee|George Gissing
  • Just as soon as a woman reads a book, she's got to talk highfurlutin' blabber.

  • He is no blabber, to divulge secrets committed to his bosom for security by confiding friendship.

    Talkers|John Bate

British Dictionary definitions for blabber (1 of 2)

/ (ˈblæbə) /


a person who blabs
idle chatter


(intr) to talk without thinking; chatter

Word Origin for blabber

C15 blabberen, probably of imitative origin

British Dictionary definitions for blabber (2 of 2)

/ (blæb) /

verb blabs, blabbing or blabbed

to divulge (secrets) indiscreetly
(intr) to chatter thoughtlessly; prattle


a less common word for blabber (def. 1), blabber (def. 2)

Derived forms of blab

blabbing, noun, adjective

Word Origin for blab

C14: of Germanic origin; compare Old High German blabbizōn, Icelandic blabbra
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012