资料来源 : Webster's Revised Unabridged Dictionary (1913)

Jim Crow \Jim Crow\
   A negro; -- said to be so called from a popular negro song
   and dance, the refrain of which is ``Wheel about and turn
   about and jump Jim Crow,'' produced in 1835 by T. D. Rice, a
   famous negro minstrel. [Slang, U. S.]

资料来源 : WordNet®

Jim Crow
     n 1: barrier preventing blacks from participating in various
          activities with whites [syn: {color bar}, {colour bar},
          {color line}, {colour line}]
     2: a crowbar fitted with a claw for pulling nails