ninja

noun:
awesome person who wears all black and has purple underwear

that girl is such a ninja!

by thisisnotnina June 8, 2011

ninja

The art of dissapearing from a room or area with people, without any of them noticeing. it is very awesome, and hard to learn. they are great at partys, and it makes a terrific exit. *very similar to "pulling a batman".

GUY #1: so, dude, have u like, seen tony around here? I beat him in a chugging contest.
GUY #2: yeah, but he must have left.
GUY #1: no way, i had every exit covered. the dude owes me 5 bucks!
GUY #2: dude! do u know what happened?? the dude must've pulled a ninja on you!
GUY #1: what i jerk. but you've gotta admit, its pretty cool.

by Quantum Kestrel December 29, 2011

ninja

To do something slyly or discreetly; to act in a secret manner.

Dood 1: "Dood, did you see Bob jack that old lady's purse?"
Dood 2: "Yeah, dood, Bob is sooo ninja."

"Dude. Next time, try to be ninja when you steal a cookie from the cookie jar. Jeez.."

by MJ is cool. August 7, 2009

Ninja

When you disappear behind a thick puff of smoke. Works better with a hookah; inhale the smoke and then slowly breathe out. Make sure to be standing near a place where you would hide yourself.

Ambrose - Okay guys, check it out! (creates a huge smokescreen and disappears behind the curtain)
Buds - WTF? This dude must be a fucking ninja!

by Ambrose Zeppo December 4, 2009

NINJA

Acronym standing for. No, Income, No, Job, Asshole

Jennifer thought Rob was a NINJA which is why she did not take him seriously when they dated.

by Gdub's September 14, 2011

The Ninja

The act of doing adderall before playing Fortnite or other video games.

Hey, before we start this next round, I’m going to do the Ninja real fast.

by Ninjas Side Chick October 17, 2018

Ninja

An alternative substitution for the term "nigga"

A nicer way for non black kids to use the term nigga without actually using it. Even though nigga is not a racist term, it can be misconstrued and possibly be offensive to some people. Ninja is a fly way to convey old to the new and may just save someone from an ass whippin'

Yo what up, my Ninja?

That's my motherfuckin Ninja!

by stevey Staxwellhouse December 11, 2009