Skudder bottom, often called skid spot, is a term used to describe a mark left behind by a car during skidding. Skudderbutts can be seen on roads while icy conditions, such as heavy rain or snow. These marks act as indicators to likely slipping or lack of traction and must be approached with caution. Drivers are cautioned to reduce their speed and keep up a safe distance from skuddderbutts to steer clear of any potential accidents. Stay safe on the roads!