vomitorium

/vɒmɪˈtɔːrɪəm/

Borrowed from Latin vomitōrium (“entrance to an amphitheatre”), substantive of vomitōrius (“emetic, provoking vomiting”), from vomō (“vomit”).

1A passage located behind a tier of seats in an amphitheatre used as an exit for the crowds
2see Usage notesAn 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.