Pronunciation: (kok'u-tOO", kok"u-tOO'),[key] —n., —pl.-toos. 1. any of numerous large, noisy, crested parrots of the genera Cacatua, Callocephalon, Calyptorhynchus, etc., of the Australasian region, having chiefly white plumage tinged with yellow, pink, or red: popular as a pet.
2. Australian. a. a person who owns and works a small farm or ranch.
b. Slang.a lookout posted by criminals or the operators of illegal gambling games.