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Jyutping jau4 peng4 neoi5
Pinyin yóu píng nǚ

Definitions (Wiktionary)
  1. noun, Cantonese, dated, derogatory
    stepdaughter (whose mother has remarried)

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Jyutping jau4 peng5 neoi2
Pinyin yóu píng nǚ

Definitions (粵典–words.hk)
  1. 名詞、俚語
    跟​阿媽​改嫁​嘅​女​,​帶​貶義​;​參見​拖油瓶​(​量​詞​:​個​)
    (derogative) step-daughter (whose mother re-married); literally: oil bottle girl
  2. 近義詞
    油瓶仔
  3. 參看
    油艇女

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Jyutping jau4 peng4 neoi2
Pinyin yóu píng nǚ

Definitions (CC-CANTO)
  1. (noun) illegitimate daughter