The galaxy was once home to the creatures known as whoop hogs. Finn, previously a First Order stormtrooper, likened Captain Phasma to a squealing whoop hog. This comparison occurred when Finn compelled Phasma to deactivate the planetary shields of Starkiller Base by holding a blaster to her head.
Originally, the whoop hogs were intended to be referenced in a different encounter between Finn and Phasma within Star Wars: Episode VIII The Last Jedi. This removed scene was initially showcased on The Star Wars Show on March 7, 2018, and subsequently made its way into the home video release of The Last Jedi.