cluck /klʌk/noun 4verb 4forms 5 noun4 •The sound made by a hen, especially when brooding, or calling her chicks. •Any sound similar to this. •A kind of tongue click used to urge on a horse. •A setting hen. verb4 •To make low clicking sounds (refers to hens). •To cause (the tongue) to make a clicking sound.My mother clucked her tongue in disapproval. •To call together, or call to follow, as a hen does her chickens.When she, poor hen, fond of no second brood, Has clucked thee to the wars and safely home. — 1608 •(UK) To suffer withdrawal from heroin. formsclucked · cluckt · clucking · clucketh · clucks