The legendary goop from which all McDonald's menu items are derived. Chilled and pooped out of machine into a cup, it's a shake. Baked in an oven, it's a bun. Grilled, it's a burger. Molded different ways and fried, it's
french fries,
chicken nuggets, onion rings, etc.
Generally anything that comes from a
McDonald's restaurant.
Also anything that's cheap, abundant, undesirable and valueless.