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.
verb blabs, blabbing or blabbed
- to divulge (secrets) indiscreetly
- (intr) to chatter thoughtlessly; prattle
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].