Camhaymaker
Similar to the ever-popular, but often maligned "Rusty Trombone", the Camhaymaker involves one partner standing with ankles grasped, while the other (the Camhaymaker) simultaneously tongues his partners anus and testicles, which he has pulled back between the partners legs.
Dude, my back is still sore from getting that awesome Camhaymaker last night! Tonight I'm hoping for a Benjamin!