Stripper or slut-in-a-box worker. Mostly you hear the expression from old gomers nowadays. From the old usage of "sling" to mean delivering or presenting, so in 30s hep jive, waitresses were hash slingers, bartenders were booze slingers, and so on.
Grandma got through the first part of the Depression slinging milk, but the dairy went bankrupt, so she slung hash for a while, till she found out she could make a lot more at the burly-q as a tit slinger.
church hurt is where you experience a degree of distance, pain, or judgement from your church community. Essentially, you are just unable to “find your place”. This is prevalent in the Christian community, but can be extended to other religions.
Now that I am an adult I am beginning to heal from the church hurt that was inflicted on me as a child.