No Income, No Job, no Assets. General abbreviation for a total looser in life.
Yo ! Do you know that guy who lives down the street with his parents? What a ninja...
by 573F March 23, 2018
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When we were in asia we had to watch out for a ninja, they are silent and deadly and asian.
by donteatpetsman April 12, 2022
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A brain dead ugly red bull drinking gay man
“The fuck you said to me you little shit
Tyler (Ninja) Blevins 2017
by Are you winning son October 5, 2020
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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.
by lordknn November 24, 2010
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somone who cuts/slits their wrist
josh: did you know *insert* cuts themselves?

you: yeah they r such a arm ninja
by chrismotionless November 24, 2022
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Swimming in a stranger's pool in the middle of the night without getting caught.
Bonus: going through a neighborhood, swimming in as many backyard pools as you can in one night.
While the rich people went to Cancun, my friends and I went Ninja Swimming during spring break.
by I'mNotThatOld March 17, 2016
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