Someone who makes douches appear less douchee. An individual that is such a douche that a greater descriptive word is needed to describe them. Thankfully because douchenozzle exists there is still a meaning to the word douche that can be thrown around freely (ex calling a random idiot a douche).
note: please use the word douchenozzle sparingly because otherwise you will be a douchenozzle and the rest of us will have to create a new word to define those who are more of a douche than a douche and a douchenozzle.
My roommate andee in Cerro Vista 707D d isn't a douche he's a douchenozzle!