Dirty William Parsons
The act of taking a leviathan telescope (54 feet in length) up the ass, so the person on the other end can get an in depth view.
Person 1: Did you hear Max did a Dirty William Parsons with John last night? John swore he could make out planets
Person 2: Wow, wanna do it tonight?
Person 2: Wow, wanna do it tonight?