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Jyutping san1 si2 haang1
Pinyin xīn shǐ kēng

Definitions (CC-CANTO)
  1. a passing fad
Definitions (粵典–words.hk)
  1. 名詞
    歇後語​:​三日​香​。​形容​一​啲​新出​現​嘅​事件​,​會​有​一大​班人蜂​擁去​嘗試​;​但​係​過​咗​一排​,​熱潮過​後​就​冇​人理
    a passing fad. A sandwich pun which the latter part is "fragrant for 3 days". Literally: new toilet
    • 呢啲乜嘢韓流都係新屎坑啫,過一排就冇人記得。
      呢啲乜嘢韩流都系新屎坑啫,过一排就冇人记得。
      ni1 di1 mat1 je5 hon4 lau4 dou1 hai6 san1 si2 haang1 ze1, gwo3 jat1 paai2 zau6 mou5 jan4 gei3 dak1.
      This whole Korean pop-culture thing is just a fad. People will forget it soon.
Definitions (Wiktionary)
  1. noun, Cantonese
    a passing fad; something new that attracts interest in the beginning but is quickly forgotten
Examples (粵典–words.hk)
  1. Cantonese
    呢啲乜嘢韩流都系新屎坑啫,过一排就冇人记得。
    呢啲乜嘢韓流都係新屎坑啫,過一排就冇人記得。
    ni1 di1 mat1 je5 hon4 lau4 dou1 hai6 san1 si2 haang1 ze1, gwo3 jat1 paai2 zau6 mou5 jan4 gei3 dak1.
    • This whole Korean pop-culture thing is just a fad. People will forget it soon.