A fork of Rural Dictionary
The amount of inner ninja possessed by an individual.
That guy has so much ninjaness hes almost like Chuck Noris
A group (ninjas) or single person (ninja) that is trained in the martial arts. They are the coolest thing on the planet and live in competition with pirates.
Ninjas are so cool that I flipped out, kicked my mom in the face and crapped my pants all in one motion.