Source : Webster's Revised Unabridged Dictionary (1913)

Rustle \Rus"tle\, v. i. [imp. & p. p. {Rustled}; p. pr. & vb. n.
   {Rustling}.] [AS. hristlan to rustle; or cf. Sw. rusta to
   stir, make a riot, or E. rush, v.]
   1. To make a quick succession of small sounds, like the
      rubbing or moving of silk cloth or dry leaves.

            He is coming; I hear his straw rustle. --Shak.

            Prouder than rustling in unpaid-for silk. --Shak.

   2. To stir about energetically; to strive to succeed; to
      bustle about. [Slang, Western U.S.]

Rustle \Rus"tle\, v. t.
   To cause to rustle; as, the wind rustles the leaves.

Rustle \Rus"tle\, n.
   A quick succession or confusion of small sounds, like those
   made by shaking leaves or straw, by rubbing silk, or the
   like; a rustling.

         When the noise of a torrent, the rustle of a wood, the
         song of birds, or the play of lambs, had power to fill
         the attention, and suspend all perception of the course
         of time.                                 --Idler.

Source : WordNet®

rustle
     n : the light noise like the noise of silk clothing or leaves
         blowing in the wind [syn: {rustling}, {whisper}, {whispering}]

rustle
     v 1: make a dry crackling sound; "rustling silk"; "the dry leaves
          were rustling in the breeze"
     2: take illegally; "rustle cattle" [syn: {lift}]