also: ツーモー
noun
drawing a tile from the wall
In mahjong, the act of drawing a tile from the wall during your turn. Often used in phrases like ツモる (to draw) or ツモ切り (discarding the drawn tile).
from Chinese zìmō
自分の番になったら、山から牌をツモる。
When it's your turn, you draw a tile from the wall.
noun
winning with a self-drawn tile
Winning a hand by drawing the winning tile yourself, as opposed to claiming a discard (ロン). Often exclaimed as 「ツモ!」 when declaring a win.
リーチ一発ツモ!
Riichi, ippatsu, tsumo! (Declaring a win on the first draw after declaring riichi.)
noun
winning off a self-drawn tile while completely concealed
Abbreviation of 門前清自摸和 (menzenchin tsumohō), a yaku (scoring combination) for winning on a self-drawn tile with a fully concealed hand (no open melds).
See also: 門前清自摸和
門前でツモると、門前清自摸和の一飜が付く。
If you win by self-draw with a concealed hand, you get the menzenchin tsumohō yaku worth one han.
From Chinese 自摸 (zìmō), meaning 'self-draw'. Used in Japanese mahjong terminology.