Person who secretly goes around sabotaging operations, missions like a double agent. Or is it a secret?
by Spwnakajern September 14, 2020

Derived from the Indonesian phrase "jalan ninja", this slang term refers to a way of life, motto, belief, or "dream" that guides them in achieving their goals.
Going to cinemas 10 times per year at this age of 21 is my ninja path to be allowed by parents to watch more mature (inappropriate) movies. BTW, once I turn 23, I'm going to be "old" if my parents still deem movies like Deadpool to be too inappropriate to me to watch.
by Emotional Cruiser August 9, 2025

by Meeneil Cashytoes July 21, 2024

Dumb Ass who runs through out the Westland night life with camera. Occasionally hopping fences. Usually with Ninja Fukushimi.
by Alyssa December 5, 2004

The act of spying or checking up thoroughly on someone through their online profiles. E.g. Facebook, blogs
Hey do you suppose you can help me ninja on the girl we just met in the pantry?
I wonder what kind of topics she likes, maybe I should ninja her blog.
I wonder what kind of topics she likes, maybe I should ninja her blog.
by lordknn November 26, 2010

by cat-daddy June 9, 2025

by Apollo4300 February 14, 2015
