讀屎片 [读－－]

Jyutping duk6 si2 pin3
Pinyin dú shǐ piàn

Definitions (Wiktionary)
  1. verb, Cantonese, derogatory, verb-object
    to have learnt nothing but crap from school; to have learnt nothing

讀屎片 [读－－]

Jyutping duk6 si2 pin2
Pinyin dú shǐ piàn

Definitions (CC-CANTO)
  1. (literally: to read diaper); to have learned nothing from one's studies
Definitions (粵典–words.hk)
  1. 動詞、粗俗
    引申​指​喺​學​校​學​嘅​嘢​好似​屎​咁​冇​用
    to have learnt nothing but crap from school; literally: to study the nappy
    • 你連乘數表都唔識，你讀屎片㗎？
      你连乘数表都唔识，你读屎片㗎？
      nei5 lin4 sing4 sou3 biu2 dou1 m4 sik1, nei5 duk6 si2 pin2 gaa4?
      You don't even know how to do multiplication? Didn't you learn anything from school?
Examples (粵典–words.hk)
  1. Cantonese
    读完大学你走去俾人洗脑做传销？正一读屎片啊你！
    讀完大學你走去俾人洗腦做傳銷？正一讀屎片啊你！
    duk6 jyun4 daai6 hok6 nei5 zau2 heoi3 bei2 jan4 sai2 nou5 zou6 cyun4 siu1? zing3 jat1 duk6 si2 pin2 aa3 nei5!
    • You spent all the time and money in college but now you are brainwashed and doing direct selling. Did you learn crap from school?
  2. Cantonese
    你连乘数表都唔识，你读屎片㗎？
    你連乘數表都唔識，你讀屎片㗎？
    nei5 lin4 sing4 sou3 biu2 dou1 m4 sik1, nei5 duk6 si2 pin2 gaa4?
    • You don't even know how to do multiplication? Didn't you learn anything from school?