The act of a gay man hooking up with or dating another gay man with very similar physical features or appearance.
Did you see that guy Alex is doppelbanging? He looks just like him.
by sea_otter July 26, 2010
Can you define these popular missing words?
v. To have sex with doppelgangers of people that one knows or has known in the past.
‘Jack prefers to doppelbang. He only has sex with girls that look like his first girlfriend.’
by JonBron March 18, 2006