命根

mìnggēn
  1. lifeblood
  2. the thing that one cherishes most in life
  3. (coll.) family jewels (male genitals)

CEDICT

colloquial

Entry Composition

1 命 mìng
  1. life
  2. fate
  3. order or command
  4. to assign a name, title etc
2 根 gēn
  1. root
  2. basis
  3. classifier for long slender objects, e.g. cigarettes, guitar strings
  4. radical (chemistry)

classifier: 條