The Collaborative International Dictionary of English v.0.48:

Skeet \Skeet\, n. [Etymol. uncertain.] (Naut.)
   A scoop with a long handle, used to wash the sides of a
   vessel, and formerly to wet the sails or deck.
   [1913 Webster]

WordNet (r) 3.0 (2006):

skeet
    n 1: the sport of shooting at clay pigeons that are hurled
         upward in such a way as to simulate the flight of a bird
         [syn: skeet, skeet shooting, trapshooting]