Ice formation behind car tires

Dear Tom,
Is there a specific name for the big chunk of frozen slush that accumulates behind the tire
of a car? During extreme cold weather those things are like rocks!
-Jeff and Linda Hildreth, DeKalb
Dear Jeff and Linda,
We know exactly what you're referring to, but to our knowledge, those ugly "fender
clinkers" are unnamed. Sometimes, though, it's worthwhile to take a look at the lighter
side of winter life (because a smile might make a winter like the current one a bit easier to
get through). With that in mind, we asked around. Here are two answers from Rick Burdsall
of Palatine: "Yes, but it's not printable in a family newspaper, especially after you've
stubbed your toe while trying to kick it loose. And, transportational aggregate— it's
composed of ice, salt and the material that used to be in all those potholes that have
formed on Interstate [Highway] 90."