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2.
The act of performing coitus with identical twins, at the same time. Stemming from the German term, Doppelgänger. Similar to a Threeway, or a Threesome, the Doppel Gang-Bang captivates the participants imagninations, especially the male's.
"Dude, you should totally try to hit both of those twins at the same time. We can call it the Doppel Gang-Bang!"
by The Diabeetle March 09, 2012
 
1.
You know, when a bunch of people that look kinda the same have sex with some other person. If they're siblings, it is not doppelgangbanging, it is incest.
Alec Baldwin, Tom Hanks, Mel Gibson, Richard Gere, and Al Pacino are all having doppelgangbang with that one girl.
by David Letterman 69 December 05, 2008
 
3.
A scenario that has all the makings of a real gang bang; several males and only one or two females. However, no sex of any sort will be taking place, because everyone is "just friends" and the girls just want to socialize with their guy friends.
No, none of us hooked up w/ Kate. It was a doppelgangbang. She was just there to play euker and feign interest in sports.
by jokesandstuff April 27, 2011
 
4.
It is an orgy of Genetic Clones(or similar looking people.) Imagine a bunch of the same person crawling and writhing all over themselves in a gang bang situation.
That guy loves himself so much I'll bet his wet dream is being in a doppelgangbang with himselfs.
by goatoad January 28, 2010
 
5.
A gangbang between a man and identical twin sisters.
"Of course I couldn't tell them apart you fucking dunce, it was a doppelgangbang."
by Ballsworth Ballstein October 14, 2012