Noun
(US) The practice of charging prisoners for their accommodation in prison.
(UK) A United Kingdom government policy, due to come into effect in April 2017 but never implemented, whereby council tenants earning £30,000 (£40,000 in London) would have to pay "market or near market rents".
(US) A scheme where prison inmates are charged for their meals, clothing etc. while in prison.
(US) A scheme where prisoners can pay to be moved to a more desirable prison.
Source: en.wiktionary.orgpay-to-stay