When a man ejaculates on someone's face, and uses a pad to rub in the ejaculate in to the other party's face, usually with a cloth or tissue, however any soft pad would be sufficient
"This Columbian chick wanted me to cum on her face and rub it into her skin."
"That's why they call it a Columbian facemask!"
The sex act involving taking a shit at a truck stop and shoving the hookers face in the toilet while you fuck her from behind
I was so pent up taking 71 all the way to Cleveland, but then some lot lizard let me give them a truckhole Facemask. Immediate relief.
The act of joyously injecting an egg (any type) into ones anus with a turkey baster and then squatting over a partners face and expelling the egg.
I totally gave Susie a egg facemask and then we cooked the egg for breakfast.