Pope Trancis is a common disguise of Pope Francis, who is believed (according to tradition) to have originated after Spongebob had revolted against Pooniella and left Bikini Bottom as a hitman to kill Francis. Francis one day would receive a phone call that Pooniella Geedbeani had executed Ben Quadinaros, the renowned Glup Shitto. After Pooniella's death, Spongebob had left Pooniey and was now a hitman hunting down Uncle Free and Francis. To hide, Fran would have to stop playing Darth Vader and would enter a disguised "Transgender" phase, known as Trancis. Trancis sometimes is noted to have suicidal intentions, yet Trancis cannot act on this as it would kill Pope Francis, leaving the Holy See vacant.
Trancis is sometimes seen crouching and running in a low stance to intimidate people he will chase. Since Trancis is just Francis, he usually is running after them for rapey or murderous reasons. He is the Pope, after all.
Trancis as a disguise is predated by Francis' ProsCis prostitute costume he would wear during the 30 Year Francis to infiltrate Protestant camps along with their cities.
Trancis would not be considered a different entity than Francis due to him simply being Francis in transgender themed clothing. Though Trancis has been included in many books, notably the Transgender Heroes Coloring book.