A Portal Potty is a toilet or a chamberpot that has been enchanted to transport someone to a predestined place as soon as they touch it. It is apparently verry difficult to make a portal potty as they onley appear twice in the series. Although they are eaisly reprogramed as Barry did it with verry little magic. The onley to tell if a toilet is a portal potty is to touch it.
One morning while Barry was on the chamber pot Fiona enchanted it and barry was teleported to the hair care aisle of Boots'.