Hoppy Bunny is a member of the furry fandom who wears a pink cartoon bunny fursuit with a crown. As the leader of a group of furries, they sell the gullible Carl an infested recorder (by promising that "every vagina on earth will be [his]") that spreads tentacles throughout every organ in his body, transforming him into a green elf-like creature and forcing him to play and dance involuntarily for the entertainment of the group (as well as letting them use his house and pool). His day job is as a brain surgeon, which he angrily announces over the phone "doesn't define [him]", since being a furry is "[his] religion".

In the volume five DVD commentary for "Hoppy Bunny" Dana Snyder said that King Furry was supposed to be the original name for Hoppy Bunny.