knocker

(-ər)

noun

  1. a person or thing that knocks; specif.,
    1. a small metal ring, hammer, etc. attached by a hinge to a door, for use in knocking for admittance
    2. Informal a faultfinder
  2. Slang a breast: usually used in pl.: a somewhat vulgar term

See knocker in American Heritage Dictionary 4

noun
  1. A hinged fixture, such as a metal ring or bar, used for knocking on a door.
  2. knockers Vulgar Slang A woman's breasts.
  3. A goblin or dwarf said to live under the earth and direct miners to ore by knocking.

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knocker

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