This consists of 3 or more men in a wheelbarrow sex position laying on their sides (upright is tricky but not impossible). The penis of one man is inserted into the anus of another until it links around and creates a full circle. The circle cannot be broken until all men have climaxed. An optional addition would be another person (Woman or Man) is present while voicing demanding thrusting instructions over a speaking aid device like a megaphone.
Shaniqua got us all doing a circle of buggery last night and my cock almost snapped off in Englebert's arse
It like a circle, it never end
Me and my bros are sadistic fucks, going to Bestival and having the gnarliest circle of buggery