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Jyutping liu1 tiu1 zi2
Pinyin liào tiāo zi

Definitions (Wiktionary)
  1. verb, literally
    to put one's shoulder pole down
  2. verb, figuratively
    to throw up one's job

撂挑子 [---]

Jyutping
Pinyin liào tiāo zi

Definitions (CC-CEDICT)
  1. (coll.) to quit one's job in disgust