- f lapjaw
- [“flaepd3o]1. n. a talkative person. D Who is the flapjaw who has Sally cornered?□ Martin is anything but a flap-jaw. I bet he doesn’t say a dozen words per hour.2. n. chatter; gossip.□ Too much flapjaw for me to concentrate in here.□ Could you all turn down the flapjaw a little?
Dictionary of American slang and colloquial expressions. 2015.