A sexual act that involving stoma penetration with a penis. Also involving the sexual fetish of scarves, turtlenecks, and beards.
A "neck job" is a lot like a blow job, but a lot more like fucking a neck.
Neck fucking is a lot like a Halls commercial.
When a guy has a girl get on her knees and sticks his erect penis against her neck, underneath her chin. He then grabs the back of her head forcing her to look downward holding his penis between her neck and chin, and proceedes to thrust back and forth.
guy: I gave her a good neck fucking last night.
guy 2: Really? How was it?
guy: Surpringly, it felt really good!