In toss juggling, a flash is either a form of numbers juggling where each ball in a juggling pattern is only thrown and caught once or it is a juggling trick where every prop is simultaneously in the air and both hands are empty. The second meaning of a 'flash' when all props are in the air is a term that may be related to the fact that it allows a "flashy" move to be performed by the juggler, such as a clap or a pirouette. A three-ball flash is considered a good preparation for learning the five-ball cascade pattern.