flapjaw(redirected from a flap jaw)
Someone prone to talking a lot or at length. Good luck getting out of here—Aunt Louise is a real flapjaw and could easily blather to you for an hour.
1. n. a talkative person. Martin is anything but a flapjaw. I bet he doesn’t say a dozen words per hour.
2. n. chatter; gossip. Too much flapjaw for me to concentrate in here.