A flip of a coin is a simple method used to make a decision or resolve a dispute. It involves tossing a coin into the air and allowing it to land on a surface. The two sides of the coin are typically referred to as "heads" and "tails," with each side representing a different outcome. This method is often used in games, sports, or everyday situations where a quick choice is needed. The randomness of the coin flip ensures that the decision is fair and unbiased, making it a popular choice for resolving dilemmas.