verb (used with object), blabbed, blab·bing.
verb (used without object), blabbed, blab·bing.
Origin of blab
Examples from the Web for blabbing
Let him but see the tears of his spouse, and he himself will weep, and he will say, "That blabbing fellow shall be punished."
Give him the half of it if he pouts; and—have a care—no blabbing!
Nothing is half so bad as blabbing what you know—not even the risk of getting caught in a lie.Heart and Soul|Victor Mapes (AKA Maveric Post)
It had such full possession of him that he was constantly betraying and blabbing it out.
Well, of course, miss, I'll do my best—I hope I aint one of the blabbing sort.A Young Mutineer|Mrs. L. T. Meade
verb blabs, blabbing or blabbed
Word Origin for blab
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].