A church that takes advantage of visitors and newcomers by providing them with a cathartic emotional experience only to manipulate them into volunteering services and money. Most of them become disillusioned and leave the church, but by then the church's leadership is already working on the next batch of suckers.
Person #1: I just joined a new church, I get to help out thereall the time. The pastor gave me a free book on how to manage my money.
Person #2: They just want to take your money and have you work for them for free. That place is total salvation mill.
When you are horny and think about engaging in an extremely sinful, degenerate sexual act, so you have a fap to avoid committing a worse sin than "just" fapping
Yesterday, I suddenly had the horny urge to engage in bestiality while having a large sausage shoved in my ass, so I did a Salvation Fap for damage control.
"May I ask, what sins did you confess at church yesterday?"
"Well, I had a short shower wank, to avoid going to the whorehouse again"
"Oh, so you had a Salvation Fap?"