A toilet installed in a public place with no privacy.
Generally installed in bars / taverns mens rooms. Due to possibility of illegal activity there is no privacy walls and the restroom door does not lock.
Therefore in a busy bar at any moment if you have to go someone may walk in on you dropping a duce.
I had to take a dump really bad but the bar has a commando shitter so I decided to drive home and take a dump.
There are many examples of a commando shitter in Pittsburgh, PA