Hint, it involves robots:
The word “onanism” has its genesis in Genesis itself, from the story of Onan, a man killed by God for “spill[ing his seed] on the ground” rather than impregnating his widowed sister-in-law according to the laws of his tribe. Originally interpreted as a warning against the practice of coitus interruptus, the story’s cautions were repurposed in the early 1700s, when the publication of an anonymous text—Onania: or the Heinous Sin of Self Pollution, and all its Frightful Consequences, in Both Sexes Considered—forged Onan’s enduring lexical link with another precipitant of non-procreative seed-spilling. Onania elucidated, in painstakingly gratuitous detail, the moral turpitude and reputed physical decay engendered by masturbation; the tract’s wildfire-like spread from England to Europe and beyond through the emerging commercialways of print publishing indubitably owed as much to its titillating prose as to the popular appeal of its exhortations contra self-titillation.