The term 'Trough Meal' is a slang term for a meal that is served in a large bowl or trough. It is usually a large quantity of food that is meant to be shared among a group of people. The crossword solution for this term is 'SLOP', which is a type of food that is made from a mixture of ingredients, such as vegetables, grains, and meats. SLOP is often served in a large bowl or trough, making it an ideal choice for a trough meal.