The act of being a tardo. Such that, there is a mental disfiguration in your mind, where you would be classified as having tardo qualities. Do not go near these people who have mastered tardoism. They will likely be wearing camo crocs, basketball shorts, camo long sleave shirt, hat, and potentially glasses. BE AWARE! STAY AWAY! RE-RE comin at ya!
Did you see that kid, steve, he has completely mastered tardoism!