strip cell
noun1
A barren prison cell in which a prisoner is kept without clothing, sheets, etc.
- It was in February 1980 and I'd been beaten by guards and called a "little fag" and thrown into a strip cell and left there for days, cold.1983 December 10, Mike Riegle, quoting James Sipes, “Sexual Politics of "Crime": Inside and Out”, in Gay Community News, volume 11, number 21, page 5: