Do Aliens have Big D YouTubeSkuddbutt, often called tire mark, is a term used to depict a smudge left behind by a motorcycle while sliding. Skuddder bottoms can be seen on roads during icy weather, including heavy rain or snow. These marks act as indicators for potential sliding or loss of control and should be approached with caution. Motorists are recommended to decrease their speed and preserve a safe distance from skuddbutts to steer clear of any potential collisions. Stay safe on the roads!