Top Definition
n. An internet celebrity. She has a small fanbase on Youtube for her AMVs but is more well known on The Ninja RPG. She is known for her tricks, mischief, and overall tom foolery. She is liked by most and hated by few. She will always go out of her way to help others when they truly need it, even at the cost of her RP life. Do not anger her though for you may become mauled or suddenly be on fire. Some see her as a deity of Konoki, though this disturbs her, she lets them have their fun. She is normally called by her nickname, ninj.
Ninjgirl is so funny sometimes! Did you see when she lit that one guy on fire?
by Agent Herring Jilt April 13, 2011

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