Wildly imaginative, ultimately impossible, sex, including physically impossible positions and stamina beyond human capabilities.
When Candiss whispered into his ear, promising an evening of bumpershoupt, Robert broke out in an obvious sweat.
When asked how his first date with April went, Harold replied with one word, "Bumpershoupt".
After Eddie's hot sister walked through the yard in her swimsuit, the boys conversation switched to pure bumpershoupt.