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Jyutping jan1 gaa1 dak1 gaam2
Pinyin yīn jiā dé jiǎn

Definitions (Wiktionary)
  1. phrase, Hong-Kong, idiomatic
    to be penny wise and pound foolish

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Jyutping jan1 gaa1 dak1 gaam2
Pinyin yīn jiā de jiǎn

Definitions (CC-CANTO)
  1. Decrease due to an increase