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Jyutping baan6 siu3 min6
Pinyin bàn xiào miàn

Definitions (Wiktionary)
  1. verb, Xiamen, Zhangzhou-Hokkien
    to smile obsequiously, apologetically, or appeasingly; to smile in a conciliating way
    (syn.) 𫖖笑面, 賠笑, 𩏠笑面, 賠笑臉, 赔笑, 赔笑脸