It's not called that, but it might as well be.
I noticed last week a new feature on FB which is where you can compare two friends of yours and see their friendship: the posts they commented on each others walls, the events you've attended, the shared interests, and the photos they're both tagged in.
What makes it awesome/addictive for me is that they show a photo of the two people. Ricky and I have been paring friends to see what Facebook has deemed THE photo of the friendship. Ricky and I are a photo of my Mad Men Meme, which is funny. Our friend Jon and Megin are the two of them with their daughter, which I found fitting. Me and Erin is one of my fridge where I tagged the two of us as a fridge magnet for when we went to Cleveland, which is odd. Me and Tim are a photo of us in Worcester one summer at a Moe's, which I actually have framed in my house. But my favorite is the photo of my two best friends from high school, Amanda and Jess:
If there was ever a photo that summed up their awesomeness, it'd be this. Happy while dancing at Amanda's wedding, full of joy. Hair a-flowing. It's just so perfect.