坎頭埋牆 [－头－墙]

Jyutping ham2 tau2 maai4 coeng4
Pinyin kǎn tóu mái qiáng

Definitions (CC-CANTO)
  1. to bang one's head against the wall [colloquial]
Definitions (粵典–words.hk)
  1. 語句
    撞​自己​個頭​埋牆​，​以​表示​憤慨​、​宣泄​嬲​怒
    to vent one's frustration; to be frazzled; literally: to bang one's head against the wall
  2. 參看
    扻頭埋牆、撼頭埋牆