槓上開花 [杠－开－]

Jyutping gong3 soeng5 hoi1 faa1
Pinyin gàng shàng kāi huā

Definitions (CC-CANTO)
  1. one of the ways to win in a Mahjong game
Definitions (Wiktionary)
  1. noun
    drawing the winning tile off the dead wall after declaring a kong