flap (one's) chops

To chatter or blather. Quit flapping your chops—I need some quiet so I can think! Whenever Charlie starts to flap his chops, I can't get in a word!

Name	Pronounced	Usage
Raiden	-	Far Eastern Mythology
Otmar	-	German, Ancient Germanic
Alenka	-	Slovene
Helen	HEL-ən (English)	English, Swedish, Norwegian, Danish, Greek Mythology (Anglicized)
Laoise	LEE-sha	Irish
Hailee	HAY-lee	English (Modern)