We have all seen those large items of rubber from semi truck tires on the freeway.

They are described as alligators. Road kill is a common website on lots of roadways, as well as truck drivers describe it as road pizza. Apartment bed trailers are commonly described as skateboards. Tractor trailers are commonly referred to as a box. If you see a truck relocating without a trailer attached to it, truckers call this bobtailing. While it saves them of gas mileage, it is a rough road without that trailer on the back to help smooth points out.