dudism

noun2

1. •
   The state or quality of being a dude, a man who is very concerned about his dress and appearance.

   • Professor Allen dressed carefully, wearing well-cut, well-tailored clothes. He was, in the apparel he wore, at the edge of dudism. — 1981
2. •
   (An instance of) speech or behavior typical of a dude, a young man.

   • Just to add to the dudism, I was now the proud owner of a Porsche 911 in which we were hacking along the A30 down to Newquay Airport — 2012