圪膝彎子 [－－弯－]

Jyutping ngat6 sat1 waan1 zi2
Pinyin gē xī wān zi

Definitions (Wiktionary)
  1. noun, Jin
    popliteal space
    (syn.) 腘窝, 膝头弯, 腳膝腕, 脚弯, 腳彎軋, 脚膝腕, 脚弯轧, 腳彎, 膝頭彎, 膕窩