noun
four kongs hand
A special mahjong winning hand consisting of four kongs (槓子) and a pair. Extremely rare and often considered a yakuman (limit hand).
from Chinese sì gàng zi
四槓子は役満の中でも特に珍しい役だ。
Four kongs is an especially rare hand even among yakuman.
彼は四槓子をテンパイしたが、流局してしまった。
He was tenpai for four kongs, but the hand ended in a draw.
From Chinese 四槓子 (sì gàng zi), literally 'four kong hand'.