Do Aliens have Big D YouTubeSkudd bottom, also known as streak, is a term used to characterize a smudge left behind by a vehicle during skidding. Skudder bottoms can be seen on highways while slippery weather, such as heavy rain or snow. The skid marks function as indicators for possible skidding or loss of control and should be handled carefully. Vehicle operators are advised to lower their speed and keep up a safe distance from skuddder bottoms to steer clear of any potential crashes. Stay safe on the roads!