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

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 5, 2010

ninjaing

Sneaking out of a party/bar without saying goodbye, unnoticed, like a ninja.

"Hey, where'd you go last night?"
"Aw man, I was starting to feel the shots so I had to ninja"

"Where'd your friend go?"
"Oh, probs home. She's bad about ninjaing"

by kylzzville December 5, 2013

ninja

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

that girl is such a ninja!

by thisisnotnina June 8, 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

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