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Jyutping lou6 zyun3 fan2
Pinyin lù zhuǎn fěn

Definitions (Wiktionary)
  1. verb, Internet
    to go from being indifferent to being a big fan

路轉粉 [-转-]

Jyutping
Pinyin lù zhuǎn fěn

Definitions (CC-CEDICT)
  1. (Internet slang) to go from being indifferent to being a big fan