2566300 jmdict A [id=2291933]
ろくろっ首；轆轤っ首[rK]
ろくろっくび
[1][n]
  rokurokubi; long-neck woman; 
  [expl] monstrous person (often a woman) with a neck that can expand and contract (in Japanese folklore)
  [see=2565520・ろくろ首[1]]