The "black and white flag" typically refers to a simple flag design featuring two horizontal stripes: one black and one white. This flag is often used in various contexts, including sports, signaling, and as a symbol of protest. In some racing events, it indicates the end of the race or a warning to drivers. In certain cultures, the black and white flag can symbolize duality, such as the balance between good and evil. It is also associated with various movements, including those advocating for social justice and equality, where the contrasting colors represent unity in diversity.