Dream Mutt (S04E11)

Billy is thrilled when he has the chance to adopt one of four dogs, but he surprises everyone by wanting all of them. Using his scythe, Grim magically fuses the dogs into one perfect companion named Wiggy Jiggy Jed. At first, Billy and Jed share a close bond, but things take a turn when Billy insists that Jed sleep outside. Upset, Jed taps into Grim's magical trunk to construct a massive device aimed at seizing everyone’s beds. In a desperate attempt to stop him, Billy tosses Jed a bowl of primordial ooze, leading to Jed's unexpected demise.