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Jyutping laam4 laam4 lou6
Pinyin lán lán lù

Definitions (Wiktionary)
  1. name, Internet, humorous, neologism
    the video mentioned above
  2. name, Internet, humorous, neologism
    McDonald's
  3. name, Internet, humorous, neologism
    the series of bodily movements or dance that is performed by Ronald McDonald in the video mentioned above, including the ran-ran-rū shout itself, which subsequently became a meme on the Chinese-language internet.
  4. name, Internet, humorous, neologism
    Ronald McDonald