Skuddder bottom, commonly referred to as skid spot, is a term used to describe a smudge left behind by a car during skidding. Skudd bottoms can be seen on highways in the midst of icy situations, including heavy rain or snow. They serve as warnings of potential skidding or lack of traction and must be approached with caution. Vehicle operators are cautioned to lower their speed and maintain a safe distance from skudderbutts to avoid any potential crashes. Stay safe on the roads!