A guy who embarrasses himself by wearing a cape or other costumes to school and using metaphoric language in an attempt to impress people.
Guy#1: "Oh great, "LARPing Leonard" decided to wear his cape again..."
Guy#2: "Why is he standing in the middle of the ring? and what is he screaming?"
LARPing Leonard "Do you want a Day of War, or A DAY OF RECKONING?!"
Guy #1 "........let's go home"