The story
Influenced by reports of one particular sex trafficking ring exposed in the 2020s, where some of the women involved were defecated on (as the "porta-potty") by clients in Dubai.
Etymology from Wiktionary, CC BY-SA 4.0.
Dubai porta-potty
Today it means: A young female influencer who accepts large amounts of money from a wealthy Middle Eastern man to take part in degrading sexual acts. Full definition →