Skudder bottom, often called skid mark, is a term used to depict a smudge left behind by a car when it skids. Skudderbutts can be seen on roads in the midst of slick conditions, like heavy rain or snow. The skid marks function as warnings of likely sliding or lack of traction and should be handled carefully. Motorists are advised to reduce their speed and maintain a safe distance from skudd bottoms to prevent any potential crashes. Stay safe on the roads!