yeah saw that one QuizMaster! but I knew what it meant just wondered if it had any origins....never actually seen Good Will Hunting...is that where it all started?
Here's a quote about the phrase..."Used ironically since the late 1920s according to the Random House Dictionary of Popular Proverbs and Sayings by Gregory Y. Titelman. So there's an actual book reference dating it to the 1920s, an era famous for its surge of creativity of slang phrases in America...the bee's knees, the cat's pyjamas, the gnu's shoes...and so on. That's probably as close to an actual 'origin' as you are likely to get.