The Collaborative International Dictionary of English v.0.48:

Pump \Pump\, v. t. [imp. & p. p. Pumped (p[u^]mt; 215); p. pr.
   & vb. n. pumping.]
   1. To raise with a pump, as water or other liquid.
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   2. To draw water, or the like, from; to from water by means
      of a pump; as, they pumped the well dry; to pump a ship.
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   3. Figuratively, to draw out or obtain, as secrets or money,
      by persistent questioning or plying; to question or ply
      persistently in order to elicit something, as information,
      money, etc.
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            But pump not me for politics.         --Otway.
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The Collaborative International Dictionary of English v.0.48:

Pumping \Pump"ing\,
   a. & n. from pump.
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   Pumping engine, a steam engine and pump combined for
      raising water. See Steam engine.
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