Skuddderbutt, also known as streak, is a term used to characterize a smudge left behind by a car when it skids. Skuddder bottoms are visible on streets while icy situations, including heavy rain or snow. These marks function as indicators of likely sliding or lack of traction and must be approached with caution. Vehicle operators are advised to lower their speed and maintain a safe distance from skudder bottoms to prevent any potential crashes. Stay safe on the roads!