Athenian leapfrog

[Mark Zuckerberg]

An event where a group of naked men arrange themselves in [leap frog] type position and proceed to engage in anal sex starting with the man in the rear.
The man in the rear will [rectally] penetrate the man in front of him. After climax will hop over the remaining men in front of him.
[The cycle] continues until all participants have been penetrated and have reached orgasm.