This is Jeff Smith. He was a Democratic member of the Missouri Senate until 2009, when he pled guilty to two counts of obstruction of justice and resigned his seat. He spent a couple of eye-opening years in US federal prison, and has written extensively about his experiences. The following are some snippets from an article about prison sex published at The Recovering Politcian:
A few weeks after you get to federal prison, you go through orientation. The first thing they do is take you down into the visiting room to show you a mandatory sexual assault video featuring a 40-ish white guy warning you not to eat the Snickers bar that may be waiting on your bed when you return to your cell. (He ate his, unwittingly signaling the predator who left it for him that he was ready and willing.) All the guys in the visiting room laughed. So did I. But at 117 lbs, I reminded myself not to accept any sweets during my tenure, lest I “get my windows tinted,” in the parlance of Federal Correctional Institution, Manchester.
[...]
When it came to women, there was really no limit to inmates’ imagination. The quickest way to get into a fight was by switching the channel during a women’s softball game or track meet, events that are watched with as much whooping and hollering as homemade porn at a frat house.
[...]
Only then did he realize that I didn’t understand his slang. He explained that “gunslingers” were men who ran strings from their toes up their leg to lubed up toilet paper tubes fitted around their penises. To “gun her down” would’ve been to wire himself and go to the chow hall at mealtime, position himself at a table near her post, and toe-tap away until he…well, I won’t extend the gun metaphor any further.
[...]
And then one day, as I walked down to the bathroom late one night, I saw it. They were in bed together, snuggling and talking quietly. I saw a newbie snicker, and then a prison old-head ice-grilled him. “It ain’t none o’ yo muthafuckin bidness,” said the look, and the newbie scurried back to his cell. After that, no one said a word about it. And it remained that way every night for the next few months until I left.
Go read the whole amazing account here.