Swill

Swill has several uses:

Swill can refer to any cheap, usually poor-tasting beverage, especially beer or liquor of many kinds, or to food unfit for human consumption. This usage is likely derived from the term pig-swill, which is a generic term for waste products mixed together into pig feed. Pigs are notoriously indiscriminate in their eating habits.

Swill can refer to grain left over from distillation or brewing processes, the process of which also removes much of the nutritional quality of the grain. Milk from cows that have been fed this kind of grain byproduct as an exclusive diet is known as swill milk and is of poor quality.

Swill is a fictional low-price mineral water popularized in 1977 by a spoof commercial starring then-Saturday Night Live cast member Bill Murray. Swill prided itself on being "the water that's dredged from Lake Erie." According to Murray's endorsement, Swill was the only thing that could "wash down a hearty meal...that tends to just lay in your stomach." The advertisement also featured footage of Swill employees bottling their product in the lake, and of Murray pouring the viscous, dirt-filled concoction over ice, telling us "...I like mine with a twist." A closeup at the end shows the bottle is a parody of the one used for Perrier.