Sentence:  The Romans frowned on obesity, and they were accredited for ["sic"] inventing the <WSD>vomitorium</WSD>, which allowed them to binge and relieve themselves of the feeling of fullness. 
Meaning of the word marked with <WSD> tags:  ("see Usage notes") An area in which vomiting takes place, in particular a chamber supposedly used by ancient Romans to vomit during a feast so they could continue eating.