What is "superduper"

Usage examples of "superduper".

Tibetan monks of yours teach you some superduper hypnotic whammy you can lay on him?

Whenever I play a Crosby record in a superduper like that, Bing seems embarrassed.

I pulled Tall, Dark, and Anytime directly in front of me, his thick build no match for my superduper vamp strength.

While I could subdue him with my superduper strength, I wanted some backup in case he whipped out a weapon of his own.