Roman shower noun2 •A shower stall that is not enclosed by a door or shower curtain.Another standard characteristic of hotels rated three stars or lower (Turkish rating) is the “Roman shower”—essentially a showerhead on the wall and a drain in the floor. — 2006 •(slang) The act of vomiting or regurgitating on someone for sexual gratification.I remembered Miranda talking about a rare Roman shower fetish, where people liked you to throw up on them. — 1999 formsRoman showers