from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Tending to blab or gossip a lot.
from the GNU version of the Collaborative International Dictionary of English
- adj. same as blabbermouthed 1.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. unwisely talking too much
blab + -y (Wiktionary)