peter thief
noun (plural peter thieves) Australian informal
A prisoner who steals from another prisoner’s cell: the women discover who the peter thief is, and deal with her...
- The worst thing you could be was a peter thief, where you would walk into someone's cell and steal their tobacco.
- I thought that if you were going to be a peter thief, you may as well go all out and do it in the open.
- “You stole something from me, Peter Thief,” I yelled, “but I've come to buy it back!”
Origin
1950s: from peter2, in the Australian sense 'a prison cell'.