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Jyutping lou5 laan4
Pinyin lǎo lán

Definitions (Wiktionary)
  1. name, Hong-Kong, slang
    Lan Kwai Fong
    (syn.) 兰桂坊, 蘭桂坊

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Jyutping lou5 laan2
Pinyin lǎo lán

Definitions (粵典–words.hk)
  1. 名詞、專名、香港
    蘭桂​坊​嘅​暱​稱
    nickname for Lan Kwai Fong (蘭桂坊), a street (and later, its surrounding areas) famous for its bars
    • 落老蘭
      落老兰
      lok6 lou5 laan2
      to go to Lan Kwai Fong
Examples (粵典–words.hk)
  1. Cantonese
    落老兰
    落老蘭
    lok6 lou5 laan2
    • to go to Lan Kwai Fong
  2. Cantonese
    落老兰有乜好玩啫?
    落老蘭有乜好玩啫?
    lok6 lou5 laan2 jau3 mat1 hou2 waan2 zet1?
    • What's the fun in going to Lan Kwai Fong?