douchenado
A huge crowd of fratboys, tourists, and other people that you don't want to be around that invade a cool place and ruin it for everyone else.
The bar was cool until a douchenado from Jersey showed up around midnight. We had to leave.
Douchenado
Refers to a person (usually male) who is such big a douche bag that they can be considered a Douche Aficionado.
how you doing, douchenado (under your breath)