by CanoeMan February 15, 2010

What you get when you are riding a bicycle, stop to dismount, and the back or inside of your bare calf accidentally touches the black, oily chain.
Joe is such a geek. He stopped at the red light with the bike between his legs, and got a big chainring tatoo from his filthy, greasy chain.
by Litespeed99 June 7, 2009

The proportion of teeth to tatoos that a person has. The less teeth and more tatoos, the more likely one is to be arrested on the TV show COPS.
by krovos August 7, 2009

The grease stain an inexperienced cyclist gets on his right calf from accidentally leaning his crankset up against his leg. A telltale sign of inexperience.
by Big Lester Free July 7, 2011

And old phrase describing joining the Navy; you were screwed for joining, blued for the blue uniform, and tatooed usually with an anchor.
by MJCA May 5, 2006

The blue-gray mark left perminantly in your outer layer of skin (epidermis) after getting stabbed or stabbing yourself with with a pencil. (commonly a number 2 pencil) It can either contain the lead (actually graphite) still inside or can just be particles that are visible through the skin. There is currently no way to remove it.
by fraxinus March 10, 2016

by Back tothe Future September 19, 2004
