Translation guide
The white dragon tile (白板) is a specific mahjong tile. In Japanese mahjong, it is called パイパン or はく.
Referring to the white dragon tile in the game of mahjong.
The standard Japanese term for the white dragon tile. Literally 'white board'. Commonly used in mahjong contexts.
白板を捨てる。
Discard the white dragon tile.
Short for 白板. Often used in spoken mahjong or informal settings.
白が来た。
I drew a white dragon.