擦槍走火 [－枪－－]

Jyutping caat3 coeng1 zau2 fo2
Pinyin cā qiāng zǒu huǒ

Definitions (CC-CEDICT)
  1. to shoot accidentally while polishing a gun
  2. (fig.) a minor incident that sparks a war
Definitions (粵典–words.hk)
  1. x
Definitions (Wiktionary)
  1. phrase, idiomatic
    to have unintended (and serious) consequences; a minor incident sparks a war
  2. phrase, idiomatic
    to shoot accidentally while polishing a gun
  3. phrase, idiomatic
    to result in unintended pregnancy; to have unintended sex