露馬腳 [－马脚]

Jyutping lou6 maa5 goek3
Pinyin lòu mǎ jiǎo

Definitions (CC-CEDICT)
  1. to reveal the cloven foot (idiom); to unmask one's true nature
  2. to give the game away
Definitions (Wiktionary)
  1. verb, verb-object
    to give oneself away; to unintentionally reveal hidden information
    (syn.) 露餡, 穿煲, 露馅
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）