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1.
When you have an orgy with alternate reality versions of yourself.
Remember that one Sliders episode when Jerry O'Connell was dopplegangbanged by himself?
by AJCoolJ February 24, 2011
28 12
 
2.
A gang bang that looks, sounds, smells, tastes and feels just like the last one.
Mary: “OMG, this gang bang is just like the one last night!!!”

Everyone: “it’s a dopplegangbang, baby!”
by phonuz September 05, 2006
16 20