The term 'Stout COUSINS' refers to two types of beer, Ale and Stout. Ale is a type of beer that is brewed with top-fermenting yeast and is usually darker in color and has a stronger flavor than other beers. Stout is a type of beer that is brewed with bottom-fermenting yeast and is usually darker in color and has a more intense flavor than other beers. The two types of beer are often referred to as 'COUSINS' because they share similar characteristics.