Machu
Machu is just a shorter way to say Manchu, which is like a fancy version of a barbarian from a long time ago. It's basically a guy who wore cool hats and fought with sticks.
My history teacher said Machu was a Manchu.
He looked like a Manchu in a time-travel movie.
Machu was just a cool nickname for a guy who looked like he came from a stick-fighting tournament.