"Yeah, I kid you not. Apparently, they decided to go into frickin' 'Patrick Star mode' and say 'We should take Walt Disney World, and push it somewhere else!'"
The plot of the episode revolves around a giant carnivorous worm that tunnels underground and eats anything that moves. Characters must stand still in order for the worm to not eat them. The worm also meets its demise via the exact same way the final worm in Tremors does.