When I was a kid, I thought this was a genuine profanity, like Corblimey. Gawd and ... something. Turns out Gordan Bennett's just these guys, you know. The first was a Brit emigree to New York, the second his son and heir. This from the "Insults" section of the English-to-American Dictionary ...Gordon Bennett expl. "Gordon Bennett" is an expletive, used very much in the one-liner context of things like "Bollocks!" or "Jesus Christ!". Its source lies in the mid-19th century at the feet of James Gordon Bennett, son of the founder of the New York Herald and Associated Press (also called Gordon Bennett, in case you thought this was going to be simple). Born with cash to spare, Gordon Jr. became legendary for high-roller stunts and fits of notoriety including urinating in his in-laws' fireplace, and burning money in public. His name entered the lexicon as a term of exclamation for anything a bit over the top.
http://english2american.com/dictionary/cat_insults.html
