double north pung/kong when north is both round and seat wind
Mahjong term for a meld of north tiles when north is the prevailing wind and the player's own seat wind, worth extra points.
See also: 連風牌
I called a double north pung and secured the yaku.
From ダブ (dabu, 'double') + 北 (pē, 'north'), a mahjong term.