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Jyutping dou3 diu3 mou5 dik6 mak6 seoi2
Pinyin dào diào mǎo dī mò shuǐ

Definitions (粵典–words.hk)
  1. 語句、俚語
    形容​一個​人​無​文化​或者​唔​識​字
    to be illiterate, to be unable to write properly; to be culturally illiterate, to be unlettered; literally "even if hung upside down, not a drop of ink will drip out"
    • 佢倒吊冇滴墨水,又點識寫大字報詆毀你?
      佢倒吊冇滴墨水,又点识写大字报诋毁你?
      keoi5 dou3 diu3 mou5 dik6 mak6 seoi2, jau6 dim2 sik1 se2 daai6 zi6 bou3 dai2 wai2 nei5?
      Not a drop of ink will drip out if you hang him upside down, how will it be possible for him to slander you with posters?
  2. 近義詞
    目不識丁

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Jyutping dou3 diu3 mou5 dik1 mak6 seoi2
Pinyin dào diào mǎo dī mò shuǐ

Definitions (CC-CANTO)
  1. hanging upside down without dropping one drop of ink, which means a person seems to know a certain thing, but actually is clueless and lack of content
Examples (粵典–words.hk)
  1. Cantonese
    佢倒吊冇滴墨水,又点识写大字报诋毁你?
    佢倒吊冇滴墨水,又點識寫大字報詆毀你?
    keoi5 dou3 diu3 mou5 dik6 mak6 seoi2, jau6 dim2 sik1 se2 daai6 zi6 bou3 dai2 wai2 nei5?
    • Not a drop of ink will drip out if you hang him upside down, how will it be possible for him to slander you with posters?