A very small room with a locking door that usually has large gaps in it and a single porcelin seat with water inside. The walls normally are suspended above the floor which also has a large gap to the ceiling. A roll of soft thin paper is almost always supplied in the room. Very often two or more conference rooms of this type are contained in a row next to each other in a larger room that usually has ceramic or tile floors. Rooms of this type are sometimes called a bathroom, restroom, water closet, among other names.
John: I have to take a meeting in the one-man conference room - I do not want to be disturbed.
Joe: Is it a stand-up meeting?
John: No it is a sit-down meeting.
Joe: How did your meeting go?
John: Negotiations were tough but it all worked out in the end. Of course no job is ever finshed until the paper work is done.