補刀 [补－]

Jyutping bou2 dou1
Pinyin bǔ dāo

Definitions (粵典–words.hk)
  1. x
Definitions (Wiktionary)
  1. verb, slang, usually
    to deal the finishing blow
  2. verb, slang
    to get the last attack on an enemy so as to reap the corresponding benefits

補刀 [补－]

Jyutping
Pinyin bǔ dāo

Definitions (CC-CEDICT)
  1. (gaming) to finish off a wounded combatant
  2. (fig.) to attack sb who is already under fire
  3. to pile on
  4. (sphragistics) to retouch a seal after taking a first impression