命根子 [－－－]

Jyutping meng6 gan1 zi2
Pinyin mìng gēn zi

Definitions (CC-CEDICT)
  1. see 命根[ming4 gen1]
Definitions (Wiktionary)
  1. noun, slang
    penis
  2. noun
    lifeblood; the thing that one cherishes the most in life