knocker meaning and definition

KNOCKER noun

Definition of knocker (noun)

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