Source : Webster's Revised Unabridged Dictionary (1913)

Bustle \Bus"tle\, n.
   A kind of pad or cushion worn on the back below the waist, by
   women, to give fullness to the skirts; -- called also
   {bishop}, and {tournure}.

Bustle \Bus"tle\ (b[u^]s"s'l), v. i. [imp. & p. p. {Bustled}
   (-s'ld); p. pr. & vb.n. {Bustling} (-sl[i^]ng).] [Cf. OE.
   buskle, perh. fr. AS. bysig busy, bysg-ian to busy + the
   verbal termination -le; or Icel. bustla to splash, bustle.]
   To move noisily; to be rudely active; to move in a way to
   cause agitation or disturbance; as, to bustle through a
   crowd.

         And leave the world for me to bustle in. --Shak.

Bustle \Bus"tle\, n.
   Great stir; agitation; tumult from stirring or excitement.

         A strange bustle and disturbance in the world. --South.

Source : WordNet®

bustle
     n 1: a rapid bustling commotion [syn: {hustle}, {flurry}, {ado},
          {fuss}, {stir}]
     2: a framework worn at the back below the waist for giving
        fullness to a woman's skirt
     v : move or cause to move energetically or busily; "The
         cheerleaders bustled about excitingly before their
         performance" [syn: {bustle about}, {hustle}]