Noun. Grocery + Socialism = Grocialism. A socio-economic pracitice where grocery chains must raise the prices on similar non-sale items or items that don't typically have a coupon option, such as produce, meats, milk, etc. because hoarding couponers clear shelves of the sale items and this is a huge loss to the store. With only non-sale item alternatives left for the non-extreme coupon user or general public, their full price groceries effectively offset the loss created by couponed-sale items.
Grocery stores which accept coupons on sale items practice grocialism to maintain their profit magin. Eww, that coupons are such grocialists!