A fad that someone gets caught up in that ultimately makes them look like a douchebag. Some examples are: The faux hawk, popping collars on a polo shirt, getting a tramp stamp, spray on tans or wearing Ed Hardy clothing.
Friend #1: Did you see that Larry grew a 70's pornstache?
It's a lightweight craft used by douches to move around on the figurative conversational currents to spread their message of doucheness to new individuals who were blissfully unaware of their existence. It also has cupholders, which is the only redeeming quality of the douchecanoe.
"Wow, did you hear what Jim had to say at the party last night?"
"Yeah, he came from nowhere on his douchecanoe and made everyone feel uncomfortable."
One who is extremely sexy but also a douchebag. you do not want to have any relations with this person because of their douchebaggery. you just want to bang them
Alex: Dayummmm he's sexy
Nikki: Yeah he's a douche though
Taylor: He's douchebangable
(doosh'-her-der) Noun. A douchebag with the ability to draw other douchebags to his or her circle of lunacy and convince them to perpetuate the original douchebag's agenda, most commonly seen in the arena of politics and government, but can define anyone in any walk of life with the ability to draw others into their own crazy plight.
That person is such a doucheherder. I can't believe they got all of those other douchebags to come together and agree with them.