I think "vagina" and "douchebag" should go away this year. We all overused them in 2006. If you're a doctor I think you should still use "vagina" when addressing your female patients' problems, but otherwise it should stop being used so much as a funny word. And "douchebag" really seemed to take off in 2006, but let's give it some time to hibernate. Unless you're a doctor who has to hand out free douchebags to his female patients who have vaginas, of course.