face potato - When you lift your chin up and then slam it back down like y

When you lift your chin up and then slam it back down like you’re trying to knock out your own face. The result? A face potato.

Text from my friend: You did the potato face again. Your face is like a potato that got run over.

DM: You look like a face potato. You did the potato face and failed.

My teacher: You did the potato face in class. Your face is like a potato that got dropped on the floor.