A roman shower is the act of one sexual partner intentionally vomiting on another. This is typically done by people with emetophilia; that is a fetish that involves becoming aroused by vomiting or by seeing other people vomit. Roman showers can also be used as part of an erotic humiliation scene between a dominant and a submissive.
More About Roman Shower
The name “roman shower” is rooted in the long held misconception that ancient Romans practiced routine binging and purging while utilizing designated spaces called vomitoriums.