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Jyutping jat1 pek6 nai4
Pinyin yī pī ní

Definitions (粵典–words.hk)
  1. 名詞、俚語
    形容​一個​人​好​冇​用​,​毫無動力
    a useless person; a "piece of shit"; literally: a piece of mud
    • 你咪成日攤響屋企一噼泥咁啦。
      你咪成日摊响屋企一噼泥咁啦。
      nei5 mai5 seng4 jat6 taan1 hoeng2 uk1 kei2 jat1 pek6 nai4 gam2 laa1.
      Don't idle around at home like a useless piece of mud.
  2. 參看
    一噼泥、一pek泥

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Jyutping jat1 pek3 nai4
Pinyin yī pī ní

Definitions (CC-CANTO)
  1. a pile of mud; a sloppy mess [colloquial]