Skudderbutt, also known as tire mark, is a term used to depict a spot left behind by a motorcycle during skidding. Skuddder bottoms are noticeable on highways in the midst of slippery situations, like heavy rain or snow. They function as signs to possible skidding or lack of traction and must be approached with caution. Vehicle operators are cautioned to lower their speed and maintain a safe distance from skudder bottoms to prevent any potential crashes. Stay safe on the roads!