- drop the ball: commit a faux pas or a fault or make a serious mistake; "I blundered during the job interview"
- dumbbell: an ignorant or foolish person
- breast: either of two soft fleshy milk-secreting glandular organs on the chest of a woman
- The Boob is a romantic comedy film released by MGM in 1926. It was directed by William Wellman and starred Gertrude Olmstead, Antonio D'Algy, George K. Arthur and Joan Crawford.
- breast, especially human female; Idiot, dummy, dork; To make a mistake
- (boobs) a woman's breasts (use with caution.* It's not bad but in mixed company it might be better to say "breasts") .
- sissy, effeminate male child, cry of the bittern
- (acronym, bolt out of the blue) (AmE, USAF) Surprise mission.
- Dumb guy (Lake, 154)