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Jyutping hek3 daai6 wu6
Pinyin chī dà hù

Definitions (CC-CEDICT)
  1. to plunder the homes of the wealthy for food (in times of famine)
  2. (of sb who has no income) to rely on others
  3. to demand a "contribution" or "loan" from a business or wealthy individual
Definitions (兩岸三地生活差異詞語彙編—Two Shores Three Places)
  1. 臺陸用法和差異
    「​吃大戶​」​一詞​通常​是​指​古代​饑荒​時​,​災民​群集​,​到​地主​富豪​家中​去​搶奪​糧食​或賴著​吃飯​。​後來​用來​形容​人​沒有​謀生​自養​能力​,​只能​依賴​他人​財力​或​社會​救助​過​生活​的​人​。​
    ​大陸​所說​的​「​吃大戶​」​,​是​形容​政府​或​公務​機關​的​部門​違背​政策​,​對​經濟​富裕​的​人​或​團體​,​以​借款​或​要求​贊助​、​分攤​為​藉口​,​強索​財物​的​行為​,​例如​:​雖然​政府​三申五令​,​但​許多​地方​單位​吃大戶​的​情形​還是​層出不窮​。