Merriam-Webster's Collegiate® Dictionary, 11th Edition
BOOB
I. noun
Etymology: short for 1booby
Date: 1907
a stupid awkward person ; simpleton , boor , Philistine , boobish adjective
II. noun
Etymology: 3boob
Date: 1934
mistake , blunder ,
III. intransitive verb
Etymology: 1boob
Date: 1935
goof 2,
IV. noun
Etymology: short for 2booby
Date: circa 1931
breast