"I cast you out!" or the cast out is a long standing joke among the Creatures, most notably used on Creature Talk to accompany the removal of fans who had called in to ask questions.
The phrase was first heard on episode 25 of Creature Talk, where Danz was trying out sound bites on the sound board and came across "I cast you out." The Creatures since decided to use the clip to "cast out" fans who called into the show. In a later episode this sound bite was joined with another: Voldemort's "NYYAAAAAAA!" from Harry Potter and the Deathly Hallows Part 2. The are many other versions and other cast outs, most notably: "Teardrop", "Fus Ro Dah" (from Skyrim), and "HAHAHAHA You Stupid Bitch" (from hey Ash whatcha playin). The original sound bite itself is from the film Thor when Odin casts him out of Asgard. Currently, the sound bite is rarely used due to calls from fans being put on hiatus.