look up any word, like cunt:
 
1.
During the foreplay stage of a sexual encounter, the male participant(s), without provocation or explanation, repeatedly thrusts his erect penis into the face of another individual.
My roommate couldn't seal the deal, so he facecocked that ho.

We were about to fuck, but he facecocked me.
by Art Cocheese September 16, 2007
 
2.
When a person is wearing braces, his/her face and mouth tends to look as if they are sucking/blowing on a cock, hence the word is formed.
You're a facecock because you have a metal mouth.
by syusyu January 07, 2010