This location is called "The Wishing Portal" by Lizard Morty, Fat Morty, and Slick Morty. However, in the near end of the episode Garbage Announcer Rick says "Garbage *burp* dump, please stand back." Slick Morty believes that "The Wishing Portal" is a place where the Citadel of Ricks dumps their broken dreams. Slick Morty sacrifices himself in order to make his wish come true. It finally, does.