Douchecanoe (n) -
1. A long-winded and narrow-minded douche.
2. The preferred mode of transportation for one or more douchebags.
1. "That unspecified radio shock jock can bloviate for hours without using a single shred of evidence to back his claims; he is a certifiable douchecanoe."
2. "Oh great, Brock and the gang just rolled up on the front lawn in their douchecanoe. This party is officially fucked."