屎窟撞棍 [－－－－]

Jyutping si2 fat1 zong6 gwan3
Pinyin shǐ kū zhuàng gùn

Definitions (粵典–words.hk)
  1. 動詞、粗俗
    負碌​；​撞彩​；​純粹​靠​運氣​成功​，​又​作​「​屎​忽​撞​馬​棍​」
    to be lucky; to achieve something by luck rather than skill; literally, "hitting one's bottom with the rod"
    • 佢屎窟撞棍先過到今次考試。
      佢屎窟撞棍先过到今次考试。
      keoi5 si2 fat1 zong6 gwan3 sin1 gwo3 dou2 gam1 ci3 haau2 si5.
      It was pure luck for him to pass the exam.
  2. 參看
    屎忽撞棍
Definitions (Wiktionary)
  1. phrase, Cantonese, idiomatic
    fluke
Examples (粵典–words.hk)
  1. Cantonese
    佢屎窟撞棍先过到今次考试。
    佢屎窟撞棍先過到今次考試。
    keoi5 si2 fat1 zong6 gwan3 sin1 gwo3 dou2 gam1 ci3 haau2 si5.
    • It was pure luck for him to pass the exam.