In the story, Jack said "I ain't no broke-dick rider." I'm not sure but I think he was referring to penniless rodeo cowboys who just keep on because they're addicted to rodeoing. And at the end of the movie, Ennis said, "You forgot what it's like bein broke all the time." I wonder when the word broke came to be used to mean, out of money? It also seems to connote, used up, wasted, done. I think this is part of the mystique of the Brokeback Mountain name. The real Brokenback Mountain got its name during pioneer days when people were trying to reach Oregon by going over the Rocky Mountains. I read in a brochure that the mountain was named for a man who hurt his back while trying to repair a wagon with a broken axle. Two brokes in one!! There were other mountains and ranges with similar names, bestowed by pioneers who had to turn back in failure or who pressed on and barely made it, or who lost members of their party in the process.