Even motorcycles and other automobiles are susceptible to this sedimentary phenomenon.

Skeptics are not convinced.

"There's a logical explanation for the appearance of sediment-based images on certain automobiles," said Dr. Tse Ling-Phan, professor of Urban Mythology. "It's very likely that this is prank generated by bored assembly line workers using high-tech acid-emulsives and space-age polymers.”

“There's an indescribable catalyst, where the dirt is hyper-sensitive--like the silver material in an Etch-a-Sketch,” said Dr. Phan. “We think that the depleted ozone layer is allowing high-intensity gamma rays to react with dirt that come in contact with certain paints.”

"I think there's an urban legend mentality about the whole 'wash-me' phenomenon," said Luc Wharme, car wash jockey. "It's more likely that the automobile industry is using a special acid-etch clear coat on the vehicles they sell. This coating makes it nearly impossible for for dirt, grime, and other mucky substances to stick to certain areas of the paint, thus revealing these mysterious messages. The question then is: if they can keep dirt from sticking to some parts of the car, why aren’t they covering the whole car with it? What’s going on there, eh? I sense a conspiracy!"

Like the mysterious crop circles in a farmer's cornfield, the strange lights in the night sky, or the unexplained sightings of Howie Mandel on network television, the "wash me" phenomenon may never be fully understood.

Biting Satire is humor and parody with teeth! Please understand that this satire article is fictitious, and only intended for entertainment purposes. Copyright Biting Satire (this year).