Meaning of knocker

Definition of knocker

(noun) (Yiddish) a big shot who knows it and acts that way; a boastful immoderate person
a person who knocks (as seeking to gain admittance); "open the door and see who the knocker is"
one who disparages or belittles the worth of something
either of two soft fleshy milk-secreting glandular organs on the chest of a woman
a device (usually metal and ornamental) attached by a hinge to a door

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