Some people might think you’re just referencing the white flag of surrender, but one of the early flags was mostly white. Often called the Stainless Banner, or the White Man’s Flag, it was also called the Jackson Flag because it was used to drape Stonewall Jackson’s casket. Eventually it was replaced, because it was easily confused with a flag of surrender, and because it was really hard to keep clean what with all the people wiping their asses with it.