The Randomness wrote...
Flesh toilet? Sounds weird.
you apparently aren't familiar with enough hentai language. It means a woman is going to be tied up and will just stay there waiting for whoever to come and fuck her. She is available for public use.
These women are often times placed in bathrooms and in some hentai people actually piss inside them, hence flesh toilet.
but don't worry I won't put mine in the bathroom. I only thought flesh toilet would be a good word for this case.