Invisible inch
An extra inch at the base of a penis that is exposed when you push down the surrounding fat areas.
She didn't look scared enough when I showed her my penis so I made sure to push in the invisible inch when I was getting her stink on my twink.
Invisible inch
An extra inch of penis, located at the base, that is exposed when pushing down the surrounding fat.
I called Victoria over so I could get some stink on my twink, and she didn't look that scared when I showed her the meat so I made sure to give her the invisible inch. My neighbors called the cops and when they came I answered the door wearing nothing but her nuva ring.