Face-forearm
When something is so dumb it makes your face feel like it's about to explode and your forearm is just there to take the hit like a meat shield.
My cousin voted for a clown for mayor. Face-forearm moment. #clownmama
When my dog ate my homework and I had to explain it to my teacher. Face-forearm. #dogproblems
I saw my ex's new boyfriend and just face-forearmed. #faceforearmofthedead