flap (one's) jaws

To talk in a meaningless, aimless, or idle manner. Jim always starts flapping his jaws after he's had a couple of drinks.

Name	Pronounced	Usage
Lassi	LAHS-see	Finnish
Andrej	-	Slovene, Czech, Slovak, Croatian, Serbian, Macedonian
Milka (2)	-	Biblical
Yvo	-	German, Dutch
Carter	KAHR-tər	English
Moisey	mah-ee-SYAY	Russian