Webster's English Dictionary

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booby

boo.by \'bu:-be-\ n [modif. of Sp bobo, fr. L balbus stammering, prob. of 
   imit. origin] 1: an awkward foolish person : DOPE  2a: any of several small 
   gannets (genus Sala) of tropical seas  2b: any of several American ducks  
   3: the poorest performer or lowest scorer in a group