Skuddder bottom, also known as skid mark, is a term used to characterize a spot left behind by a car while sliding. Skuddder bottoms are noticeable on highways while icy weather, including heavy rain or snow. They act as warnings of likely slipping or loss of control and should be handled carefully. Drivers are cautioned to decrease their speed and preserve a safe distance from skudd bottoms to prevent any potential accidents. Stay safe on the roads!