Skudderbutt, commonly referred to as skid mark, is a term used to describe a spot left behind by a car while sliding. Skuddbutts are noticeable on highways during slippery conditions, including heavy rain or snow. They act as signs for potential slipping or lack of traction and should be approached with caution. Drivers are advised to lower their speed and preserve a safe distance from skuddbutts to steer clear of any potential accidents. Stay safe on the roads!