It is a sexual act, involving at least 6 people
for best results. The ideal's would be to get 3 beds, 3 girls bent over on the beds and 3 guys taking them from behind... using
an egg timer each guy gets 3 minutes with the girl, after said time
everyone switches around which is known
as the round robin...
A: How did you and dave get on with those
B: Oh man, it was crazy we went back to their flat, and had some round robin action with their roommates...!