The obfuscation of one's dude-like qualities, typically because he/she is secure in their dudeliness and have no need to lord it over others.
You're not really dude if you are always trying to convince others that you are. You should practice dudefuscation to truly understand what it means to be dude.
A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.