/ ˈbuːbi; NAmE / noun ( pl. -ies )
1.
( informal ) a stupid person :
Don't be such a booby!
2.
[ usually pl. ] ( informal ) a word for a woman's breast, used especially by children
3.
a large tropical bird with brightly coloured feet that lives near the sea
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WORD ORIGIN
sense 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.