WordWeb Online

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
   - detractor, disparager, depreciator
    
4. [vulgar] Either of two soft fleshy milk-secreting glandular organs on the chest of a woman
   - breast, bosom
    
5. A device (usually metal and ornamental) attached by a hinge to a door
   - doorknocker, rapper

Derived forms: knockers

See also: knock

Type of: big cheese, big deal, big enchilada, big fish, big gun, big shot, big wheel, cynic, device, faultfinder, head honcho, individual, mamma, mammary gland, mortal, person, somebody, someone, soul

Part of: adult female body, front door, front entrance, woman's body

Encyclopedia: Knocker