flap (one's) jaws
flap (one's) jaws
To talk in a meaningless, aimless, or idle manner; to chatter or blather. Jim always starts flapping his jaws after he's had a couple of drinks. Quit flapping your jaws—I need some quiet so I can think!
See also: flap, jaw
Farlex Dictionary of Idioms.
- flap (one's) chops
- flap (one's) gums
- flap gums
- flap your gums
- noodle about (something)
- jabber
- roam
- roam about
- putter along
- kill time, to