The modern way of saying "Beating a dead horse."
To waste time doing or explaining something that has already been done to death.
Man, we get it. You want people to like your band's facebook page. You don't need to post the link on your wall every two days. Stop Killing Bruce Wayne's Parents.
The pauses in Christopher Walken's speech should from now on be referred to as "Walken Distance". The longer the pause, the greater the Walken Distance.
This term can also be used to define the distance between you and a cowbell. If you can hit the cowbell, it is within Walken Distance.
friend 1 doing impression: "Do you not understand.... the... CAAANCEPT... of the tooth fairy!?"
friend 2: "Dude, you had the Walken Distance timed perfectly!"
drummer: "I need to reposition that cowbell so it's within walken distance. It's a little hard to reach"