A fork of Rural Dictionary
A red-head (or ginger) who is certified in a form of martial arts.
Simple as that.
Shelby: Omg. I just realized. You have red hair, right?
Steven: Yes...
Shelby: And you have your black belt, right?
Steven: Yes...
Shelby: OMG! You're a ginganinja!
Unlike many Ninja's the ginganinja has very little ability or talent except a talent for being a total prick.
"ROFLMAO that guy sucks ass he must be GingaNinja"