Ninja 

(N)o (I)ncome, (N)o (J)ob, or (A)ssets

That dude's a ninja.

Ninja by pedant5 August 17, 2011

Ninja 

Someone with KICK-ASS moves. They are practically impossible to see.

Guy 1: What was that?
Guy 2: Could be a ninja.

Guy 1: H-HOW CAN YOU BE SO C-C-CALM!?

Ninja by MagicalNarwhal August 24, 2011

Ninja 

Super Stealth Killer

The girls in this tribe will go all ninja on you in a heartbeat.

Ninja by superstealthkillergirl September 10, 2011

ninja 

stealthy individuals specialized in espionage and murder. They often use numchucks and fight with un-gloved hands

That girl just killed someone with her bare hands. She's such a ninja

ninja by tennis ball kate October 18, 2011

ninja 

Rachel Hinds

Rachel Hinds is a ninja

ninja by HindZ November 10, 2012

ninja 

An asian who totally kicks ass (like me).

Whoa! That guy is a freakin NINJA!

ninja by theninjaofbeasts August 23, 2012

Ninja 

Ninja is a phrase now used to label a person you do dirt with. It's roots are found from the actual Ninjas who would move in the darkness of the night, never being seen, veiled in mystery, also usually committing crimes as Ninjas were actually farmers who rebelled against the Samurais who were rich men, soldiers, and basically part of the Govt. Now the phrase is used more commonly to friends who you may be committing crimes with and crimes usually happen at night. If you commit a burglary then those affiliated with you could be called your ninjas. Of course, a lot of people just want to sound cool and use the phrase though never committed any crimes in their actual life. So the phrase has also become just another word similar to words and phrases like homey, homeboy and nigga.

I just called up my ninjas, we bout to rob them fools.

Ninja by PrettyBoy91 October 25, 2012