露马脚

lòumǎjiǎo

露马脚 — lòumǎjiǎo

1. to reveal the cloven foot (idiom); to unmask one's true nature; to give the game away

   他的谎言终于露马脚了。 tā de huǎngyán zhōngyú lòumǎjiǎo le — His lies finally gave him away.