The epoophoron, if I'm honest, has little to nothing to do with human sexuality. But it has the word poop in it's name, and if you think I'm going to discover a word with poop in and then keep it to myself, you're an idiot.
Only ladies have epoophorons. It lives between the ovaries and fallopian tube, and is made up of some little rudimentary tubules that are the left over remnants of the mesonepheric tubules of the uterus.
I think you will never use this information, but it would be great to be able to use the word epoophoron in conversation. If you find a way to use it in a sentence please let me know.