The ultimite insult. If delivered properly it can end any sort of argument. Usuealy delivered when someone comes to your house and breaks your shit, or an obnoxious prick. There are different levels of being a Douche-douche. Each individual Douche-douche has his own title: Douche-douche Commander, Douche-douche Killer, The Douche-douche, etc.
Ben:Oh my god Cole just broke my guituar.
Dean:Yo man, he's Triple Douche-douche legend.