Group of people fisting in a circle chain
Like those plastic trains that connect together they go round in the rosie
When you call out "round the rosie" at a gay swinger party. All right hands are gloved and lubed. Then a circle of fisting forms.

Wife: “Have you put the sheets out to dry and put the towels on?”
Husband: “Yes. You know I am a grown adult also used to live alone so you do not need to micro marrige me”