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Meaning of spudder

spud•der

Pronunciation: (spud'ur), [key]
— n.
  1. a person who prepares and operates a rig for drilling oil wells.
  2. a light drilling rig used chiefly in beginning a well.
  3. spud (def. 3).
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.