Slop (noun)

1. Wet, soft, and often dirty or waste material.
2. Food that is unappetizing or of poor quality, often served to prisoners or livestock.
3. The act of spilling or splashing a liquid in a careless or messy manner.

Origin:

Derived from the middle english word 'slope', meaning to spill or slither.

Examples:

1. The pig was happily rooting through the slop in its pen.
2. She spilled the bowl of soup, creating a mess of slop on the floor.
3. The prisoners were given slop for dinner and were unhappy with the quality of the food.
4. The workers had to clean up the slop from the broken vase.
5. He refused to eat the slop and demanded a better meal.