二皮脸

Traditional (Taiwan): 二皮臉

èrpíliǎn ㄦˋ ㄆㄧˊ ㄌㄧㄢˇ

    • shameless, thick-skinned person
    • rogue

Character by character

Saying俗语俗語

Idiom惯用语 · Widely known

Literally
second-skin face
Meaning
A shameless, thick-skinned person who plays the rogue. Insulting.

Sources