표리부동

表裏不同

Word for word

“the outside and inside differ”

What it means

Two-faced; saying one thing, meaning another.

When you'd use it

Criticizing someone who's nice to your face only.

Example

앞에선 칭찬하고 뒤에선 흉보다니, 표리부동하네.Praising you to your face and gossiping behind your back — so two-faced.