This is slang in some regions of the UK for the scientifical term eye guts. Often mistaken, optic nerve, by some for the real term, alas, it is not.
Used in Northern England and some parts of Scotland on the borderline.
Clint: Nah, I used my optic nerve blocking to ignore that loser!
By Sandie
Anal Optical Nerve
n. A nerve discovered in March 2007, it connects a person's anus to the back of their eye
the Anal Optical Nerve exists, If you don't believe me, pull a hair from your ass and see if it doesn't bring a tear to your eye.
By Odelle
Optic Nerve Blocking
To block someone/something from your field of vision. There is a possibility that you can still hear them but it comes in the form of sounds that remind you of them.