facearm
You slap your face like it’s your enemy, then you drag your head down your arms like you're hiding from the world.
When I found out my dog ate my homework, I did the facearm and my face turned red.
I got a zero on my science test. I did the facearm and my elbow got sore.
When I saw my crush with someone else, I did the facearm and my face felt like it was on fire.