Scrappy binding is pieced binding made from a variety of fabric sources. These fabric sources include leftover fabric scraps from your quilt projects, fabric from a jelly roll, store-bought fat quarters, or store-bought single-fold scrappy binding sold by the yard.
Or you can combine all of the mentioned fabric sources. Your resources are the only limit on your fabric combinations. Imaginative fabric combinations are greatly encouraged when binding a quilt with a scrappy binding.
Most people think scrappy binding is only for scrappy quilts. Actually, scrappy binding is so versatile that it can be used on any quilt.