原形畢露 [－－毕－]

Jyutping jyun4 jing4 bat1 lou6
Pinyin yuán xíng bì lù

Definitions (CC-CEDICT)
  1. original identity fully revealed (idiom); fig. to unmask and expose the whole truth
Definitions (粵典–words.hk)
  1. 語句
    露出​真面目
    to unmask and expose the full picture
    • 佢喺靚女面前扮有禮貌，唔夠兩分鐘就原形畢露。
      佢喺靓女面前扮有礼貌，唔够两分钟就原形毕露。
      keoi5 hai2 leng3 neoi2 min6 cin4 baan6 jau5 lai5 maau6, m4 gau3 loeng5 fan1 zung1 zau6 jyun4 jing4 bat1 lou6.
      He pretended to be polite in front of pretty girls, but he soon exposed his true character within two minutes.
Definitions (Wiktionary)
  1. phrase, idiomatic
    to reveal one's true colors
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）
Examples (粵典–words.hk)
  1. Cantonese
    佢喺靓女面前扮有礼貌，唔够两分钟就原形毕露。
    佢喺靚女面前扮有禮貌，唔夠兩分鐘就原形畢露。
    keoi5 hai2 leng3 neoi2 min6 cin4 baan6 jau5 lai5 maau6, m4 gau3 loeng5 fan1 zung1 zau6 jyun4 jing4 bat1 lou6.
    • He pretended to be polite in front of pretty girls, but he soon exposed his true character within two minutes.