Noun
porta-potty (plural porta-potties)
A portable toilet, (in UK, particularly) a chemical toilet comprising only the fixture rather than an entire enclosure.
Leo grabbed the neasrest thing he could find- a Porta-Potty seat- and threw it at the face. Leve me alone! Rick Riordan
Bob Dylan's neighbors in Malibu are up in arms over his porta-potty. Source: Internet
Several solutions are available from a toilet seat that snaps to the top of a five-gallon bucket for $10, to a chemical porta-potty costing $200 plus. Source: Internet