马脚 (馬腳) mǎjiǎo

mǎjiǎo noun something one wishes to conceal
Domain: Modern Chinese 现代汉语
Notes: (CC-CEDICT '馬腳')

Contained in

• 露马脚(露馬腳) to reveal the cloven foot; to unmask one's true nature; to give the game away ; to show the cloven foot

Also contained in

露出马脚