賣兒鬻女 [卖儿－－]

Jyutping maai6 ji4 juk6 neoi5
Pinyin mài ér yù nǚ

Definitions (CC-CANTO)
  1. to sell one's children when compelled by poverty
Definitions (Wiktionary)
  1. phrase, idiomatic
    to be forced to sell one's children because one is destitute