Definition of: cluck

(kluk) v.t.
1. To call by clucking, as chickens.
2. To utter with a like sound: to cluck disapproval.
—v.i.
3. To make the noise of a hen calling her chicks or brooding.
4. To make a sound of suction in the side of the mouth, as in urging a horse; make any sound similar to a cluck.
—noun
1. A sound like that made by a brooding hen to call her chicks.
2. A hen.
3. Slang A person resembling a hen in stupidity. [Imit.]