The Collaborative International Dictionary of English v.0.48:

Crimple \Crim"ple\ (kr?m"p'l), v. t. [imp. & p. p. Crimpled
   (-p'ld); p. pr. & vb. n. Crimpling (-pl?ng).] [Dim. of
   crimp, v. t. ]
   To cause to shrink or draw together; to contract; to curl.
   [R.] --Wiseman.
   [1913 Webster]