noun, noun or participle which takes 'suru'
forming a kong; declaring a kong
In mahjong, the action of forming a set of four identical tiles and declaring it, which earns a bonus draw. Used as both a noun and a suru-verb.
from Chinese gàng
See also: 槓子
彼は發を槓して、リンシャン牌を引いた。
He declared a kong with the green dragon and drew a replacement tile.
When you form a kong, another dora indicator is flipped.