Butt-

  1. prefix v. Of inferior quality. Flavoring prefix, used seriously, facetiously, sarcastically or sardonically. Almost always applied to food items. For example, butt-burgers aka sliders. Other examples: butt-breakfast, butt-chips, butt-chunks, butt-cream, butt-fries, butt-juice, butt-pack, butt-sauce. Sometimes applied to non-food items, such as butt-ware or butt-mobile. Derived from buttfood.