棺材頭燒炮仗 [－－头烧－－]

Jyutping gun1 coi4 tau4 siu1 paau3 zoeng2
Pinyin guān cai tóu shāo pào zhang

Definitions (粵典–words.hk)
  1. 語句
    歇後語​；​後​半句​係​「​嚇死​人​」
    a sandwich pun implying "to scare to kill; to freak out"; literally: to light up firecrackers at the head of the coffin