Skudder bottom, also known as tire mark, is a term used to characterize a smudge left behind by a car during skidding. Skudd bottoms can be seen on highways during slick weather, such as heavy rain or snow. These marks serve as warnings of possible sliding or lack of traction and should be handled carefully. Motorists are recommended to lower their speed and preserve a safe distance from skudderbutts to steer clear of any potential accidents. Stay safe on the roads!