A deranged sexual act inspired by a famous scene from the cult classic horror film "Creepshow". This particular scene portrayed actor Ted Danson being buried up to his neck in sand while being filmed as the incoming tide is rising. An elegant, yet perverted twist lead to the idea to bury a person up to their neck in sand and conducting a circle jerk on the person's face, or alternatively a bukkake.
Me and the other lifeguards brought the new badge inspector down to beach after work for a creepshow, but after a few loads of man butter the tide came in strong and she totally started freaking out.
The human buttocks; specifically, the skin and muscle enclosing the anus. The body part that sandwiches residual fecal matter attached to the rectum, thus providing a buffer between one's undergarments.
My mud flaps felt like sandpaper, leading me to believe that I may not have adequately wiped myself.