1 definition by bigrod12

Top Definition
A unit of measurement that a man uses to describe the length of his penis to feel better aout himself. One cock inch (though varies greatly from man to man) is roughly .6 standard inches.
Guy: "Say girl, i have a ten inch dick,"

Girl: "Quit using cock inches to try and be cool, we all know your a sixer."

Guys friends: "OOhhhhhhhhh!"
by bigrod12 December 16, 2011

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