A misspelling of the German, "doppelganger", roughly translates as "evil twin". Can be used literally, as in example below.
"A man was falsely convicted of rape when his doppelganger went on a sexual crime spree. The mistaken identity led to his conviction."
by D.L. "Fox" Doucette September 21, 2003
Some fucking retarded idea made popular by facebook in which users post a picture of someone they think looks like them. Most of the time you just think they're an idiot and wonder why the hell they would do that.
Jimmy put a picture of Tom Cruise as his profile picture saying it looks like him. Although Tom Cruise is a stupid dumbfuck, and he looked nothing like Jimmy, Tom Cruise was Jimmy's Doppleganger.
by ChristianPressNP April 06, 2010