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10.
Someone who intentionally targets and expels douchebaggery to his/her victims. Unlike a douchebag, though sometimes confused, that unintentionally expels douchebaggery to victims. Being a douchecanoe is the apex of douchebaggery going from prick, dick, asshole, douche, douchebag, and finally douchecanoe in progressive order.
It's like everyone is living in an ocean and people all float. Douchebags are floating too but unintentionally hit people and release their douchebaggery, meanwhile douchecanoes target people that they've want to fuck with.

Dylan: Dude I have a story to tell, so my roommate.. or ex roommate... banged my girl in my bed when I went to go take a shower and then left the semen on my pillow so when I layed down that night I almost put my head on it.

Wolfy: l feel for you man, that guy's a douchecanoe!
by Crew Wolfy October 06, 2011
 
1.
Someone who exceedes the limits of being a normal douche or douche bag.

"Luke, you are such a douche canoe"
by Dino V. February 18, 2007
 
2.
1. Any vehicle filled to capacity with a group of major douchebags. Usually a luxury SUV. Most often owned or purchased by the parents of one of the douche mcgouches inside. The group of individuals who pour out of the douche canoe can be affectionately referred to as a "shitstorm of douchebags."
If that douche canoe tries to swoop us in the Taco Bell line, I will go fisticuffs with that whole shitstorm of douchebags inside!
by MFaF September 13, 2009
 
3.
Not just your run of the mill douche. A total douche! This douche will kill you with his non stop douche baggery. Avoid the douche Canoe at all costs.
Ryan Seacrest is a total douche canoe
by Daniel: Tiger of Ra January 07, 2008
 
4.
the highest leavel of doucheny
paul has gotta be the biggest douchecanoe ever
by no-name-name October 01, 2006
 
5.
A person that is so douchey, said douchey-ness travels cross bodies of water.
Check out that douchecanoe... I bet they can see his Ed Hardy shorts from hawaii.
by donkitat November 01, 2010
 
6.
when a person is so douchey they are equal to about 50 douchebags, therefore a canoe would be needed.

It is much larger than most other forms of douches
Kyle Benger is a Douchecanoe
by wishshedidntknowanydouchecanoe November 17, 2010
 
7.
A vehicle containing or transporting two or more douchebags.
Dude, check out that Hummer over there. It's a total douche canoe.
by Skirish April 24, 2010