Magun is very common among the Yorubas. It is usually placed on wives by their husbands without their knowledge as a deterrent for committing adultery. And if she goes ahead with the act, her lover could end up losing his life or getting stuck while in the act.
This is practiced by people who hail from Calabar. The fattening room is a room where young women are kept and prepared for womanhood and marriage. Being fat is considered as a sign of good living.