boner

n (US infml 口) stupid mistake; blunder （愚蠢的）错误; 大错.

bombastically, Bombay, bomber, bombshell, bon mot, bon-bon, bona fide, bona fides, bonanza, bond, bondage, bonded, bonded warehouse, bone, bone china, bone idle, bone-dry, bone-meal, bone-shaker, bonehead, bones, bonfire, Bonfire Night, bongo, bonhomie, bonkers, bonnet, bonnily, bonny, bonus, bony, boo, boob, booby, booby prize (also wooden spoon), booby trap, booby-trap, boodle, boogie, book,