boob(noun, verb) noun1. an ignorant or foolish personSimilar word(s): booby, dope, dumbbell, dummy, pinheadDefinition categories: person, simple, simpleton2. either of two soft fleshy milk-secreting glandular organs on the chest of a womanSimilar word(s): bosom, breast, knockerDefinition categories: body, mamma verb1. commit a faux pas or a fault or make a serious mistakeSimilar word(s): blunder, goof, sinDefinition categories: social, breach, break, infract, offend, transgress, violate