pig·tail /-ˌtel/
  豬尾,髮辮,接續用銅線
  Pig·tail n.
  1. The tail of a pig.
  2. Hair Dressing A cue, or queue.
  3. A kind of twisted chewing tobacco.
     The tobacco he usually cheweth, called pigtail.   --Swift.
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  pigtail
       n : a braid of hair on either side of the face