face-post
The look on your face when you come down from the high of watching porn and realize you just got a boner in the middle of your math test
He looked like he’d just seen a goat and a chicken have a fight. That’s not a face-post, that’s a face-fail.
She stared at the ceiling like she was trying to figure out the meaning of life. That’s a post-porn face-post.
He had the face of a man who just got caught eating cake in a library. That’s a face-post for the ages.