閃光彈 [闪－弹]

Jyutping sim2 gwong1 daan2
Pinyin shǎn guāng dàn

Definitions (粵典–words.hk)
  1. 名詞
    一種​以​強光​阻礙​目標​視力​功能​嘅​輕​型​非​致命性​武器​，​屬於手​榴​彈​嘅​一​種​；​投擲後會​燃燒​鎂​或者​鉀而產​生​掁​眼​嘅​強​光​，​令目​標​喺​短​時​間​內​失明​而​喪失​反抗​能力
    flash grenade; flash pellet; flashbang
  2. 名詞
    對​炫耀​情侶關​係​嘅​行​為​嘅​戲​稱
    humourous address for the act of showing off one's relationship with one's romantic partner