Ninja

A silent killer that orriginated from japan. They are common to were black cloths and carry an assourtment of wepons.
I did not see him! He was like a ninja!

He killed him so fast he was like a ninja!
by Conman27 May 05, 2010
mugGet the Ninjamug.

Ninja

1.(adj) Used to describe something that is so awesome it blows your mind. Comes from the fact that ninjas are well..ninja.
2.Can also be used as a characteristic to describe a person or thing.
1. "Did you see those gangstas on scooters rockin there kickass skillz before??" "Yeah, it was so ninja!"
2. "That girl is so ninja for starting the use of the word ninja in many people's daily life.
3. Daybies think that's so endo when really it's not even ninja.
by Sniperx992 January 27, 2010
mugGet the Ninjamug.

Ninja

A method used to silently shit and piss on a girl's face (usually a whore) after a long night of having intercourse, ending with the person leaving unnoticed.
Hey man, did you have sex with that chick yet?

Yeah, I pulled a Ninja on her.
by mikeyurban July 27, 2018
mugGet the Ninjamug.

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
mugGet the The Ninjamug.

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
mugGet the NINJAmug.

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 04, 2009
mugGet the Ninjamug.

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
mugGet the Ninjamug.