Faceback
The ability to judge how hot someone is just by looking at the back of their head. You give them a score out of 10 before you even see their face. If you're right, you're a Faceback King or Queen.
I saw a guy's back and gave him a 9. He turned around and looked like a 10.
I gave a girl a 5, but she turned around and was a 10.
I gave my teacher a 2, but he turned around and was a 10.