Can I come to your house, my poopatorium is broken and I really need to crap.
Realtors often mistakenly refer to this as a "toilet room". It's the small enclosed space inside a larger bathroom where the throne is located. It has to have a door, which is closed during #2 operations, but not necessarily on #1 operations.
Jane: I love this house, the only issue is that the master bath has no poopatoruim.
Realtor: Poopatorium? Really?! I consider myself schooled!