Basically, an education that brings another ditto head into being. Usually causes one to be narrow-minded, ill-informed, racist, and bigoted in general.
Caller: "Hey Rush, I'm another ditto head. I've studied under you for 10 years and I feel so empowered against these phony libs."
Rush: "Hey good for you. I am indeed El Rushbo the great magnificent cheese, and I'm proud of Americans like you - real patriots willing to fight those dirty terrorists and bring freedom! Thank you, and now we have a commercial break.... Do you feel safe at home? Well, there's a new system here for fighting all kinds of intruders and it's totally 100% effective. Trust me... blah blah blah..."