A truck driven by a douchebag, typically American-made, often embellished with extra lights, large grills, custom hubcaps, truck nuts, etc. A douchetruck is always unnecessarily large and jacked-up, and the worst offenders also have loud diesel engines. Douchetruck owners partake freely in douchetruckery, and are often seen the common douche uniform of Ed Hardy.
Some SUV models have "Eddie Bauer Editions." Douchetrucks are the "Ed Hardy Edition" of pickup trucks.
A total douchebag and cockhead all mixed into one big package of asshole. Also a derogatory term for homosexuals and preppy blondies.
"AH that Nick kid is such a DOUCHECOCKLE, I saw him beating off into the water fountain the other day in the men's locker room. I heard he got atomic donkey punched right after some kids wheeked that bitch."
Doucheneck is an extra low cut V neck t-shirt that is worn by a guy who wears it in a derisive, sarcastic manner with attitude directed at everyone. It can accompany skinny jeans, scene style, or general metrosexuality.
"That guy in the doucheneck just spilled his drink on my friend without apologizing."