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Jyutping san1 sin1 lo4 baak6 pei4
Pinyin xīn xiān luó bo pí

Definitions (粵典–words.hk)
  1. 名詞
    不自量力​、​自視過​高​嘅​人​;​亦​用​嚟​批評​人要​反省​自己​嘅​水平
    used to put someone down for thinking too highly of themselves or do not know their place, i.e. "who does he think he is?".
    • 你當你乜嘢新絲蘿蔔皮?
      你当你乜嘢新丝萝卜皮?
      nei5 dong3 nei5 mat1 je5 san1 si1 lo4 baak6 pei4
      Who do you think you are?
  2. 參看
    身屍蘿蔔皮、新絲蘿蔔皮

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Jyutping san1 sin1 lo4 baak6 pei4
Pinyin xin1xiān luó2bo pí

Definitions (CC-CANTO)
  1. 'so special' / 'so great' / 'so marvallous' (in a sarcastic tone used in the expression “so (you /he / she) think (you / he / she are / is) so special” [colloquial]
Examples (粵典–words.hk)
  1. Cantonese
    你乜嘢 新鲜萝卜皮 啊?喺度下栏扮上菜!
    你乜嘢 新鮮蘿蔔皮 啊?喺度下欄扮上菜!
    nei5 mat1 je5 san1 sin1 lo4 baat6 pei4 aa3? hai2 dou6 haa6 laan4 baan6 soeng6 coi3!
    • Who do you think you are? Trying to act all high class and things!