What you call one red-headed, freckled person that looks exactly like another red-headed, freckled person that you know. These people are often mistaken for each other, and hilarity ensues. Everyone in Ireland has at least three of these.
Normal Friend: Hey man, you didn't wave at me when I saw you on the street!
Ginger Friend: I don't thinkthat was me...You must have seen my doppelginger.
A similar looking although considerably less attractive person who is included in activities in order to make their counterpart look better by comparison.
The doppelminger is often unaware of their status as doppelminger, or sometimes uses the relationship for their own advantages (for example, becoming cool by association)
Yeah but only because she's got her doppelminger with her.
A person, who formally being homosexual, converts back to heterosexuality, but then is lured back to the other side, once more becoming homosexual.
"It's such a damn shame... we got him back onto the straight and narrow, but he had to attend that swinger party the other night. Some fella applied some pressure, and once again, he's licking the other side of the stamp"