What is Rib Job?
1.
When a male rubs his cock back and forth between a girls breasts(ribs, see rib rack) while she licks his head as it emerges from her breasts
Susan Gives awesome rib jobs cuz her muffins are the size of basketballs
2.
When a guy's Dick is so big that it rubs on the inside of a girls ribs.
Guy 1: "I ended up going home with Casandra last night."
Guy 2: "What? You mean that midget from the circus? She was 3 and half foot tall!!"
Guy 2: "Did you Fuck her?"
Guy 2: "Yah! It was tough at first, I totally gave her a Rib Job!"
See