1) The underappreciated apparatus of the Douche that actually does the stinky work. Attached to the Douche Bag.
2) A male who acts and looks like an utter jackass. Someone who transcends common insults to the point that simply calling him a "jackass" or "douchebag" will no longer do. Much more offensive than simply calling someone a douchebag.
1) "Check out the cell phoneclip on that Douche Nozzle".
2) "Can you believe that Douche Nozzle? He's walking around the party, talking to fat chicks and searching for an 'Insert Here' sign".
3) Oliver from Spring Break.
A person (typically male) or their actions, who has acted in such an obnoxious manner that the behavior alone reeks as an unsanitary twat would. Malicious intent and/or malevolence is a general added characteristic.
The most vile form of Douche-Baggery. In progression of severity of behavior: One could be a Douche, a Douche-Bag, Douche-Nozzle, or most disgustingly Douche-Nozzle Backflow!
The First Sergeant was not a Douche-Bag, but rather Douche-Nozzle Backflow. His character reeked.
12 step recovery jargon referring to someone new who talks about how great life is, now that they'resober. Usually meaning that the person is out of touch with reality.
The new guy seems pretty happy for a dude who has no job, no money and no family. He must be on a pink cloud.