face-high-five
You punch someone’s face with your hand and keep it there like you’re giving them a lecture. If you let go before the time is up, you're weak and they’ll laugh at you.
I face-high-fived my brother and now he won’t stop crying.
My friend tried to face-high-five me and got a slap so strong, he fell off the chair.
I face-high-fived my math teacher and now I have to do 100 problems.