The term 'Swill for Swine' refers to a type of food given to pigs, usually consisting of a mixture of grains and other ingredients. The crossword solution for this term is 'SLOP, ' which is a term used to describe a type of wet feed given to animals, such as pigs. SLOP is usually made up of a combination of grains, vegetables, and other ingredients, and is often served in a liquid form. This type of food is also known as swill, and is commonly given to pigs as a source of nutrition.