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Jyutping tung4 baa1 gok3 mou5
Pinyin tóng bà gè mǔ

Definitions (Wiktionary)
  1. adj, Taiwanese-Hokkien, Zhangzhou-Hokkien
    born of the same father but a different mother
    (syn.) 共爷隔娘, 同父异母, 共爺隔娘, 同父異母