'blabby' definitions:

Definition of 'blabby'

From: WordNet
adjective
Unwisely talking too much [syn: bigmouthed, blabbermouthed, blabby, talkative]

Definition of 'blabby'

From: GCIDE
  • blabby \blab"by\ adj. same as blabbermouthed 1.
  • Syn: bigmouthed, blabbermouthed, talkative. [WordNet 1.5]