Sharing the Hole
The act of two penises entering into one orifice, usually the vagina.
Man 1: Hey how are you doing?

Man 2: I'm alright, I just found out that my girl wants to have a three way with another guy.. It's like we're going to be Rubbing Dicks.

Man 1: Nah, it's literally going to be you two Sharing the Hole

Man 2: Why are you better at this then I am?