boob boob /ˈbuːb/

noun

1. [Vulgar] Either of two soft fleshy milk-secreting glandular organs on the chest of a woman  ( boob [Vulgar] , bosom , knocker [Vulgar] , breast , tit [Vulgar] , titty [Vulgar] , bazoom [ N. American, Vulgar] , nork [Australian, Vulgar] )
   either of two soft fleshy milk-secreting glandular organs on the chest of a woman
    She went to the doctor for a routine breast exam
   She went to the doctor for a routine breast exam
   
   
2. [Informal] An ignorant or foolish person  ( boob [Informal] , dope [Informal] , dumbbell [Informal] , booby , dummy [Informal] , pinhead [Informal] , div [Informal, British] )
   an ignorant or foolish person
   

verb

1. [Informal] Commit a faux pas or a fault or make a serious mistake  ( boob [Informal] , drop the ball , sin , blunder , goof [Informal] )
   commit a faux pas or a fault or make a serious mistake
    I blundered during the job interview
   I blundered during the job interview