Splashboard

[Sarah]

A guard in the front part of vehicle, to prevent splashing by amud or water from the horse's heels; -- in the United States commonlycalled dashboard.

[Sarah]

The area of the lower back slightly above the buttocks where the male ejaculates on the female shortly after doggie-style sex. Usually the target of choice for cum tossing when the male is overly excited and needs to quickly pull out.

See also, [tramp stamp].