cat's-paw /ˈkætsˌpɔ/
 受人利用者
 Cat's-paw n.
 1. Naut. (a) A light transitory air which ruffles the surface of the water during a calm, or the ripples made by such a puff of air. (b) A particular hitch or turn in the bight of a rope, into which a tackle may be hooked.
 2. A dupe; a tool; one who, or that which, is used by another as an instrument to a accomplish his purposes.
 Note: ☞ In this sense the term refers to the fable of the monkey using the cat's paw to draw the roasting chestnuts out of the fire.
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 cat's-paw
      n 1: a person used by another to gain an end [syn: instrument,
           pawn]
      2: a hitch in the middle of rope that has two eyes into which
         tackle can be hooked