COCKATOO Meaning of COCKATOO in English n.1 any of several parrots of the family Cacatuinae, having powerful beaks and erectile crests. 2 Austral. & NZ colloq. a small farmer. Etymology: Du. kaketoe f. Malay kakatua, assim. to COCK(1) Oxford English vocab. Оксфордский английский словарь. 2012