Meaning that, given the length of large trash bags, if a person were short enough, the person could be placed in two bags at once. You'd slip one over their head, and one bag over their feet, and the open ends of each bag would meet in approximately the middle of the person. You could secure them with tape in the middle to keep them from falling off.
Ahh...that's what I thought but for some reason kept reading it differently. Thanks.