blabber

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

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

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

2. 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.

noun

3. idle, indiscreet chattering.
4. a person who blabs; blabbermouth.

noun

1. a person who blabs
2. idle chatter

verb

3. (intr) to talk without thinking; chatter

verb blabs, blabbing or blabbed

1. to divulge (secrets) indiscreetly
2. (intr) to chatter thoughtlessly; prattle

noun

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

v.

mid-14c., “to speak as an infant speaks,” frequentative of blabben, of echoic origin (cf. Old Norse blabbra, Danish blabbre “babble,” German plappern “to babble”). Meaning “to talk excessively” is from late 14c. Related: Blabbered; blabbering.

v.

mid-15c., apparently from Middle English noun blabbe “one who does not control his tongue” (late 13c.), probably echoic. Related: Blabbed; blabbing. The exact relationship between the blabs and blabber is difficult to determine. The noun was “[e]xceedingly common in 16th and 17th c.; unusual in literature since c 1750″ [OED].