expression, godan verb (-ku)
to peel off a layer; to strip away a veneer
Literally means to peel off one skin or layer. Often used figuratively for revealing someone's true nature or removing a superficial covering.
彼の優しい仮面を一皮むけば、冷酷な性格が見える。
If you peel off his gentle mask, you can see his cold-hearted nature.
その政
When the politician's fine words were stripped away, corruption came to light.