Did roman eat until they were full then visit a room called a vomitorium to vomit?

Did roman eat until they were full then visit a room called a vomitorium to vomit?
No, there was no such room designated for vomiting in Roman times. There were, however, passages called "vomitoria" through which crowds would enter and exit stadiums. And it does seem, as suggested by passages from Seneca and Cicero, that vomiting was actually practiced in decadence and not too unusual. But there was no relation between the vomitoria and vomiting, it is simply a misconception based on assumptions.