Flesh Caterpillar

A penis. Specifically one of exceptional girth and a rumpled foreskin.
Often resembling a flesh colored caterpillar.

Sorry, Pat's mum isn't available right now- she's playing the flesh caterpillar.

I was taking a leak at a public urinal, and when I glanced down I noticed the man next to me had a giant flesh caterpillar.

Space Station

The act of docking when performed by 3 or more men- creating a circular structure with multiple docking bays.

If the act is performed by three men of different nationality it is known as an ISS, or International Space Station. Not to be confused with the artificial satellite currently in low earth orbit.

Michael felt like he was missing out when he saw Shane and Mitch docking, but fortunately Shane suggested he join in so they can make a Space Station.