Skudd bottom, commonly referred to as tire mark, is a term used to describe a stain left behind by a car while sliding. Skudder bottoms are visible on roads during icy situations, including heavy rain or snow. These marks serve as signs for possible slipping or lack of traction and should be treated with care. Drivers are recommended to decrease their speed and preserve a safe distance from skudd bottoms to prevent any potential collisions. Stay safe on the roads!