尾閭 [－闾]

Jyutping mei5 leoi4
Pinyin wěi lǘ

Definitions (Wiktionary)
  1. noun, Chinese
    a hole that is said to be located at the bottom of the ocean where all water is endlessly leaking away without ever being exhausted.
  2. noun
    lower reaches (of a river)
  3. noun, Chinese, traditional
    the "tail gate", coccygeal and sacral areas