In erotic terms, where the role of the male is forcibly changed, such as in a situation where the female is the dominant persona.
This is where the male, while submissive to begin with, in this situation, is further forced to adopt a more feminine persona.
It usually involves cross dressing, to the wearing of traditional female garb, panties, dresses, etc.
As well, it can involve a more public display for the submissive male, in which they take on the mannerisms of a woman, while out in public.
In some instances, anal sex is also performed, either through use of sexual novelties, or by the assistance of another male.
This forced homosexuality, can be oral only, or can include anal penetration.
Further, it can simply be the act of one male, being more submissive, than the other male, in a male on male scenario.