ponies

Pony \Po"ny\, n.; pl. {Ponies}. [Written also {poney}.] [Gael.
   ponaidh.]
   1. A small horse.
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   2. Twenty-five pounds sterling. [Slang, Eng.]
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   3. A translation or a key used to avoid study in getting
      lessons; a crib; a trot. [College Cant]
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   4. A small glass of beer. [Slang]
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   {Pony chaise}, a light, low chaise, drawn by a pony or a pair
      of ponies.

   {Pony engine}, a small locomotive for switching cars from one
      track to another. [U.S.]

   {Pony truck} (Locomotive Engine), a truck which has only two
      wheels.

   {Pony truss} (Bridge Building), a truss which has so little
      height that overhead bracing can not be used.
      [1913 Webster] poop
      poopoo