Flail It

Creator

Would that give the jammer (or the offense?) a multi-player block, or a high block, or what? Remedial Roller Derby: A "Jersey Whip" or a "Shirt Whip" is where a skater grabs a teammate's stretchy jersey/shirt/uniform top and uses it to gain forwards momentum. While flashy, it's not very common in modern derby, because it's not very useful most of the time.