Dude, she was the hottest girl that I have ever been with but man, her cum face was crazy. She looked like someone stuck a fire extiguisher up her butt and turned it on full blast.
A girl's face that's so attractive and provocative looking, that it turns a man on and gives him an erection without even seeing the rest of her body. The face alone is sexually stimulating enough for a man to want to masturbate to/on it.
A prank created by Joe,where the victim is in the (school) cafeteria and the prankster makes his way over to the mayo and napkins, grabs a napkin and spreads mayo all over it, and then sneaks behind the victim and smacks and peels away the napkin from the victim's face while yelling cum Face!
An honerable statement though frowned apon in some cultures and groups that is a unisex phrase that is actually a complimentat the end of the day but mostly males use this as a way to show their affection towards you so wether you agree with it or not it is a compliment