dagger sagger
a man who thinks he's in a movie, but he's just sitting in a coffee shop yelling about imaginary dragons and swords.
He yelled, "I will slay thee, mighty beast!" at a group of kids who were just eating pastries.
He waved his coffee like it was a sword and announced he was going to battle the coffee shop manager.
He told everyone he was a wizard and then ordered a latte like it was a spell.