When one person is performing cunnilingus while placing one foot behind the recipients head, and the other foot against there foot. At the same time the recipient of cunnilingus is giving there partner a hand job, and holding tightly to the foot against her foot. And lastly, the one performing cunnilingus places his/her hand inside the mouth of the recipient.
"OMG! I met this guy last night, and y'know, I'm such a whore and all, I took him home and fucked him, and I had no idea he was a acrobat! He just about broke my back doing this complex position known as the Scandinavian Glass Chopper! It was so good, I think I will be sexually satisfied for the rest of my life."