half flush; winning hand with one suit and honor tiles
Mahjong term: a hand composed of tiles from only one suit plus honor tiles (winds/dragons).
from Chinese hùnyīsè
See also: ホンイツ
A half flush is not a yakuman, but it's a frequently aimed-for hand.
He declared riichi with a tenpai hand for a half flush.
heterogeneity; mixed composition
Colloquial, figurative use derived from the mahjong term; describes something made from diverse or inconsistent sources, often with a negative nuance of being a mishmash.
This product is a mishmash of parts, so the quality is inconsistent.
Borrowed from Chinese 混一色 (hùnyīsè), literally 'mixed one color'. The colloquial sense extends the idea of a mixed hand to general heterogeneity.