13th stepper 

Someone who goes to 12~step meetings for the purpose of finding a 1~night stand.

Her friends warned her that he was a 13th stepper. There's plenty of them.

13th stepper by Starchylde June 8, 2016

13th Stepper 

Someone who goes to ANY 12 step meeting for the purpose of looking for a one night stand. They see people in recovery as "low hanging fruit" and tend to prey on them for their own sexual gratification whether it be a one night stand or a friends with benefits type situation or even a relationship.

I warned her that he might try to pick her up at the recovery meeting, he was so obviously a 13th stepper. He had always been a predator to ladies in recovery.

13th Stepper by Marla_Singer June 21, 2019

13th Stepper 

Somebody in AA who fucks newcomers

John Ziegler is a typical 13th Stepper

13th Stepper by Cristobal H May 25, 2010