A Roundabout is a
sexual act which involves at least 4 men, whereby each person is and has a hole filled,
thus creating the Roundabout effect.
Mike: Hey Jimmy what did you do last night?
Jimmy: Eh, nothin much Bryson and some of his
friends came over last night.
Mike: Oh, is that the dude with Münchhausen's?, anyway so what happened last night?
Jimmy: We done this
thing called a Roundabout, it was awesome.
Mike: Dude, thats
sick.