wag one’s chin

wag (one's) chin

To talk or chat, especially idly or at length. A less-common variant of "wag one's tongue." My dad is usually a pretty quiet guy, but get him talking about electrical engineering and he can wag his chin for hours at a time. My wife and her sister haven't seen each other in a while, so they've been wagging their chins all afternoon.

See also: chin, wag

wag one’s chin

tv. to talk or jabber; to chatter aimlessly. The two old buzzards sat on the park bench wagging their chins all afternoon.

See also: chin, wag