What is Flügenball?

A team sport in which an undefined amount of people (usually over 4) stand in a circle and try to keep ball of crumpled recycling paper (a Flügenball) in the air for as long as possible, recording a point for every hit. A double-hit is when one person hits the ball twice consecutively. If a double-hit occurs, the points reset. It is often used as a drama warm up, or energizer.