祖公 [－－]

Jyutping zou2 gung1
Pinyin zǔ gōng

Definitions (Wiktionary)
  1. noun, Min-Nan
    great-grandfather (particularly paternal grandfather's father)
  2. noun, Min-Nan
    ancestors; forebears; forefathers
  3. noun, Min-Nan, vulgar
    another's ancestor (usually referring to the speaker to insult someone)