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Jyutping ding1 hak1
Pinyin dīng kè

Definitions (CC-CEDICT)
  1. Dual Income, No Kids (DINK) (loanword)
Definitions (Wiktionary)
  1. noun
    DINK (double income, no kids ― a childless couple with two jobs and thus two incomes)
    (syn.) 頂客, 顶客, 丁客