Ninja 

an asian that defies logic and is greater than God herself.

Wow, that ninja knows all!

Ninja by Smokebombfanatic October 15, 2010

ninja 

ninja (verb) - to skillfully take an object without being detected

Hey when you go to Wal-Mart could you ninja me some 5 hour energy drinks.

ninja by twindragon November 12, 2010

Ninja 

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.

Ninja by lordknn November 26, 2010

ninja 

noun. An alternative to the n-word.

Hell, yeah, ninja!
Wassup, my ninjas?

ninja by Brogurt December 1, 2010

ninja 

No one knows anything about ninjas, they are never found. Anyone who says they are a ninja is lying, no ninja admits to being a ninja.

Ninja.

ninja by mynameisalreadybeingusedagian March 3, 2011

ninja 

a bad sexually transmitted disase.

I found out that whore I fucked had the ninja.

ninja by itchybum7 July 8, 2011

ninja 

a person that you have a crush on

girl 1: i can't find that ninja anywhere!
girl 2: who?
girl 3: that totally hot guy she has been crushing on.

ninja by bizzy5454 July 28, 2011