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
Vaughn	[van]
Ohannes	-	Armenian
Hanna (1)	HAHN-nah (Finnish, Polish, Ukrainian), HAH-nah (German)	Swedish, Norwegian, Danish, Finnish, Polish, Ukrainian, Belarusian, German, Dutch, Icelandic, Hungar
Amandine	a-mawn-DEEN	French
Terah	TEE-rə (English)	Biblical
Lorne	LAWRN	English