A general term for an asshole or douche who is driving a Porsche or similar style of car. A typical Dousche is driving like they have been blindfolded with the inside of their own asshole and gagged with their own scrotum, or looks like a general rat-fuck.
One who makes a point to say the most rediculous things at the worst possible time, often to the listeners misfoutune. It is always part of a Dousche Magousch's plan to use this to get a promotion, gold star, etc.
The talk with the boss was going fine, until Richard poked his head in and said, "you forgot to clock out last night!" I was fired. Richard is a fucking Dousche Magousch.
When one is not only a dousche bag, but is also being extremely high key in a low key setting or super unfunny.
At a party where cops are patrolling outside.
Dousche Monkey runs out of the house into the backyard and yells: Dudes! Let's get hammered!
Everyone Else: Stop being such a dousche monkey! we're gonna get rolled!