冚國旗 [－国－]

Jyutping ham6 gwok3 kei4
Pinyin kǎn guó qí

Definitions (Wiktionary)
  1. verb, Cantonese, of a police officer, verb-object
    to die in the line of duty

冚國旗 [－国－]

Jyutping kam2 gwok3 kei4
Pinyin kǎn guó qí

Definitions (粵典–words.hk)
  1. 動詞
    意思​指紀律​部隊​人員​，​尤其​是​係​警察​喺​執​勤​期​間​殉​職​；​喪禮​入面​，​殉職​者​嘅​靈​柩​會​由​國​旗​覆​蓋​，​以​表示​政府​嘅​致意​，​所以​冚​國旗​就​代表​殉職
    to be killed in the line of duty; literally "covered by national flag"

冚國旗 [－国－]

Jyutping ham6 gwok3 kei4
Pinyin kà guó qí

Definitions (CC-CANTO)
  1. lit. to cover a coffin with the national flag, meaning one has the honour to die for his/her nation/use as a curse on one to died, especially government officials