When a group of males ejaculate into a 10 gallon cowboy hat and proceed to dump the contents onto an unsuspecting female.Or could be used to describe the actions of a slutty female attempting to hook up with multiple guys.
Your mom showed up at the bar last nite last night. The boys handed out a good ol tennessee carwash on the house. She sparkled like new.

or

Sally's cruising for a tennessee carwash with that skirt.
by Elbo McGuilicutty April 4, 2009
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