Prison rape jokes are a part of rape culture. Making “don’t drop the soap” and “become someone’s bitch” jokes means you think rape is okay if it happens to certain people.
When I was a teenager in 1990's Southern California, Sublime's "Date Rape" was popular on the radio as a pseudo-feminist revenge story with the rapist getting raped at the end. It always made me uncomfortable, and it took me a while to realize that it was just celebrating rape as a power fantasy.
