Skudder bottom, often called tire mark, is a term used to characterize a mark left behind by a automobile while sliding. Skudd bottoms are noticeable on streets during icy weather, such as heavy rain or snow. They act as signs for likely slipping or lack of traction and must be treated with care. Drivers are advised to lower their speed and maintain a safe distance from skudderbutts to avoid any potential collisions. Stay safe on the roads!