Jon Edward - "The Biggest Douche in the Universe"

Who said it first - Trey Parker and Matt Stone, or Penn & Teller? And was one giving a nod to the other or was pure coincidence?

South Park said it first, and Penn & Teller were giving the nod to them.

I saw both shows in first run. The South Park episode came out before the first episode of Bullsh!t aired.