A "Canada Douche" is someone that acts like an arrogant, boastful, self-centered jerk only while wearing a Canada Goose jacket. Furthermore, their perception is negatively hindered due to the fact that their Canada Goose jacket is expensive, which leads them to believe they are better than most people.
1) "Check out that Canada Douche posing in front of that mirror."
2) "Uggh, that couple has matching Canada Douche jackets!"
3) "That guy totally thinks he's better than everyone because of his outrageously expensive Canada Douche jacket."