Merriam-Webster's Collegiate® Dictionary, 11th Edition
BOOBY
I. noun (plural boobies)
Etymology: modification of Spanish bobo, from Latin balbus stammering, probably of imitative origin
Date: 1602
an awkward foolish person ; dope , any of several tropical seabirds (genus Sula ) of the gannet family,
II. noun (plural boobies)
Etymology: alteration of bubby
Date: 1916
breast