Ownership; sexually suggestive right in claiming and controlling the actions and behavior of another human being, however rarely results in sexual activity.
Once a person's butt keeps has been taken (through generally accepted public opinion or by force), the butt keeps rights cannot be redistributed until the owner forfeits his/her position as the Butt Keeper.
Ryan: I think I'll eat a sandwich today
Shannon: No you won't.
Ryan: Please! Why can't I?!
Shannon: Butt Keeps, Ryan... Butt Keeps...
Keith: Ryan, you shouldn't have let her take 'em when she did!
Casey: He wanted her to.