An "apocalypse" of "douches". Occurs when a bunch of douches get together and it seems as if the world is ending. Most often at a party of snooty snoots or a sausagefest.
Mitch: Dude I went to Jarrett's partylast night.
Alec: Oh, was it cool?
Mitch: No it was a huge doucheocalypse.
A measure of the number of douche bags in the immediate area. Thus, an open field would be considered to have a very low douchecosity level, where as a night club on a Friday night will tend to have a relatively high level.
The douchecosity level at the Cedar Hotel sure is high on Friday nights. There are popped collarseverywhere.