Boarding schools and prisons create similar social scenarios. I believe male-male rape/harassment/"hazing" is/was a significant problem in many all-male British boarding schools.

Fraternities fit into more or less the same category, and likewise frequently feature various forms of ritualized homosexuality. It just isn't considered acceptable to acknowledge this; being the receptive partner in gay male sex has been considered damaging to masculinity for thousands of years, in at least the West and Japan.