look up any word, like kappa:

1 definition by Elbo

 
1.
Derived from the word Doppelganger, an Oppelganger is your doppelganger of the opposite sex.
Guy: If I was a chick, Reese Witherspoon would be my doppelganger.
Girl: Reese Witherspoon is totes your oppelganger.
by Elbo December 28, 2012