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1.
A word, phrase, or philosophy taken either directly or indirectly from the teachings of our leader, Tyler Durden.
"You are not your fucking khakis."
by Silence November 09, 2003
 
2.
the art of getting the living crap beat out of you and still having a positive attitude or at least a smile still on your face;a similar way to how tyler durden was in "fight club" after bieng beaten senseless by lou.
man 1:hey did you hear about tim

man 2:yeah,he studied durdenism,he gets beat up all the time at the bar and he's still happy.
by tv freak October 16, 2009