Secondly, readers should not cluck their satisfaction so blithely over economic sanctions.
It used to be cute, and adults would shake their heads and cluck their tongues.
Old English cloccian originally echoic. Cf. Turkish culuk, one of the words for "turkey;" Greek klozein, Latin glocire, German glucken. Related: Clucked; clucking.
1703, "sound made by a hen," from cluck (v.). Slang meaning "stupid person" (turkeys are famously foolish) is from 1927.