Douchebag Effect 

Aptly describes the multiplication of Douchebags at a party your hosting. This exponential reproduction usually takes place via txt message or phone call.

Your party begins with 70 people you know and ends with 300 you don't.

Things that are often broken or defaced by those caught up in the douchebag effect include but are not limited to:

Broken Stairs
Broken Floors
Broken Fridges
Broken Windows
Broken Couches
Broken Tables
Broken Speakers
Blood on the walls
Towels used as Toilet Paper
Walls spray painted on
Windows tagged
Stolen Laptops
Stolen Ipods
Stolen Booze
The playing cards you were using to play drinking games with said douchebags in an attempt to make it somewhat enjoyable....... stolen.
Beds peed on
Fire hydrants broken and parts tossed onto your roof.

Nathan: "Hey Tom you recognize any of these 150 people in our living room?"
Tom: "Nope."
Ryan: "They stole my beer and broke our fridge."
Nathan: "Friggin douchebag effect."

Douchebag Effect by TheFormer360Boyz April 7, 2009

The Douchebag Effect 

When a group of two or more males, each with a slight tendency to be an individual douche, are gathered together in a space, the likelihood of each individual to feed off of each other and act extremely douchey is greatly increased, thus enacting the douchebag effect. The douchebag effect can occur in any situation, however it is most likely to occur when there is a group of attractive females around, or when there are zero females around and the testosterone levels are too high. The range of individual douchebaggyness can range from very small to extremely large, however individual douche levels are usually set aside because the douchebag effect overpowers individuality. The only way to not be sucked into the douchebag effect is to in face have zero percent douchebag in one’s system to begin with.

"Kyle, Steve, and Mikey are all fine to hang around with one on one, but when they get together in a group the douchebag effect occurs and it's unbearable to be around them."

The Douchebag Effect by jmaddzzz August 14, 2012