two-pair wait; waiting on either of two pairs to complete a triplet
Mahjong term: a hand that is one tile away from winning, needing to complete either of two pairs into a three-of-a-kind (pon). Often used in the phrase シャンポン待ち.
from Chinese
See also: シャンポン待ち (シャンポンまち)
This hand is a two-pair wait; if either tile comes, I can win.
シャンポン待ちは、二つの対子のどちらかを刻子にできる形だ。
A two-pair wait is a shape where you can turn either of two pairs into a triplet.
Ateji kanji spelling using 双 (pair) and ポン (from mahjong call). Rarely used in practice.
Kanji spelling using 碰 (mahjong 'pung'). Very rare; mainly seen in older or Chinese-influenced contexts.
From Chinese 双碰 (shuāng pèng, 'double pung'), a mahjong term. The reading シャンポン reflects a Japanese approximation of the Chinese sounds.