Faceplame - When you try to facepalm but your hand slips and your face c

When you try to facepalm but your hand slips and your face crashes into the table like a pancake.

My brother faceplame-d when he realized he wore his socks inside out for three weeks.

I faceplame-d during a test when I realized I had to write my name on the back of the paper.

My teacher faceplame-d when a student told her the sky was green.