[-----]

Jyutping go3 nou5 sang1 hai2 si2 fat1 dou6
Pinyin gè nǎo shēng xí shǐ kū dù

Definitions (Wiktionary)
  1. phrase, Cantonese, idiomatic
    stupid; idiotic
    (syn.) 坐住個腦, 坐住个脑