chook /t͡ʃʊk/noun 4exclamation 2forms 1 noun4 •(Australia, informal) A chicken, especially a hen.Worm chickens once every three months and, if an occasional lice problem occurs, spray the inside of the chook shed with Coopex. — 2005 •(Australia, informal) A cooked chicken; a chicken dressed for cooking. •(Australia, Northern-England) Affectionate name for a person •(Australia, old-fashioned) A fool. exclamation2 •(Australia) A call made to chickens. •An imitation of the call of a chicken.Chook, chook, quack, quack, / Cock-a-doodle-doo; / All the ducks and the fowls / Admire me, they do. — 1875 formschooks