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Jyutping jan4 cit3 bang1 taap3
Pinyin rén shè bēng tā

Definitions (Wiktionary)
  1. phrase, neologism, slang
    to have one's good public image destroyed by something scandalous
  2. phrase, slang
    out of character
Examples (Wiktionary)
  1. Mandarin
    人设崩塌
    人設崩塌
    rén shè bēng tā
    • the “collapse” of one's good image