Definition of booby noun from the Oxford Advanced Learner's Dictionary



    BrE BrE//ˈbuːbi//
    ; NAmE NAmE//ˈbuːbi//
    (pl. boobies) Birds
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  1. 1(informal) a stupid person Don't be such a booby!
  2. 2[usually plural] (informal) a word for a woman’s breast, used especially by children
  3. 3a large tropical bird with brightly coloured feet that lives near the sea See related entries: Birds
  4. Word Originsense 1 and sense 3 early 17th cent.: probably from Spanish bobo (in both senses), from Latin balbus ‘stammering’. sense 2 1930s: alteration of dialect bubby, of uncertain origin; perhaps related to German dialect Bübbi ‘teat’.
See the Oxford Advanced American Dictionary entry: booby