Nice definition Aye jaye but unfortunately an utterly incorrect one.
First, I've been listening to Howard Stern for years, and have a large collection of tapes from the show. They've been using the term long, long before Arrested Development even came on the Air (November 2003 according to Wikipedia). As we speak I'm listening to the 11-19-2002 show (a full year before Arrested Development debuted), and Artie Lange is making fun of Eric the Midget's American Idol love by saying it gives him douche chills.
Basically, as it was used on the Stern show, it's when someone does or says something so douchy, it gives you chills.
The new guy at work came in and started telling me what to do. I would have told him off, but I was more surprised than anything. I'm not kidding, he gave me serious douche chills.