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Jyutping mou5 gam3 niu5
Pinyin mǎo gàn niǎo

Definitions (Wiktionary)
  1. phrase, Cantonese
    would be a better course of action

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Jyutping mou5 gam3 nau1
Pinyin mǎo hán niǎo

Definitions (粵典–words.hk)
  1. 語句
    用​嚟​事​後​提出​另​一件​事點​都​好過​原先​做​咗​嗰​件​,​不如​揀​前者​;​前面​可以​加副詞​「​仲​」​修飾
    used to suggest afterwards; "... should have been better"; literally: not that angry; could be modified by the adverb 仲
    • 啲錢用嚟買股票冇咁嬲。
      啲钱用嚟买股票冇咁嬲。
      di1 cin2 jung6 lai4 maai5 gu2 piu3 mou5 gam3 nau1.
      I'd rather spend the money on stocks.
    • 地鐵咁多人,搭巴士仲冇咁嬲。
      地铁咁多人,搭巴士仲冇咁嬲。
      dei6 tit3 gam3 do1 jan4, daap3 baa1 si2 zung6 mou5 gam3 nau1.
      The MTR is crowded. I should have taken a bus.
Examples (粵典–words.hk)
  1. Cantonese
    啲钱用嚟买股票冇咁嬲。
    啲錢用嚟買股票冇咁嬲。
    di1 cin2 jung6 lai4 maai5 gu2 piu3 mou5 gam3 nau1.
    • I'd rather spend the money on stocks.
  2. Cantonese
    地铁咁多人,搭巴士仲冇咁嬲。
    地鐵咁多人,搭巴士仲冇咁嬲。
    dei6 tit3 gam3 do1 jan4, daap3 baa1 si2 zung6 mou5 gam3 nau1.
    • The MTR is crowded. I should have taken a bus.