Main entry: knocker, rapper, doorknocker
Definition: a device (usually metal and ornamental) attached by a hinge to a door
Main entry: knocker, boob, bosom, breast, tit, titty
Definition: either of two soft fleshy milk-secreting glandular organs on the chest of a woman
Main entry: detractor, disparager, depreciator, knocker
Definition: one who disparages or belittles the worth of something
Main entry: knocker
Definition: a person who knocks (as seeking to gain admittance)
Usage: open the door and see who the knocker is
Main entry: knocker
Definition: (Yiddish) a big shot who knows it and acts that way; a boastful immoderate person