toilet ninja 

When a criminal tries to dispense of evidence in a restroom, this same-sex modern-day hero follows the offender and physically prevents any further crimes.

This lady was caught shoplifting and, in a panic, ran into the restroom to try and "flush" the evidence, but Katy, the same-sex security guard, and modern-day hero, followed the alleged criminal into the stall, secured the prisoner, and saved the day. Katy is a toilet ninja.

toilet ninja by carolinatdi June 13, 2011

mall ninja shit 

Crazy ass or stupid knives or weapons that are just ridiculous

A category on Tumblr

Dude that double sided batman knife is some Mall ninja shit

mall ninja shit by B,B,B,BIRD,BIRD,BIRD,THEBIRDIS November 19, 2017

ninja 

Little stealthy dudes dressed in all black, carrying around swords and daggers, who jump out of trees and off of buildings to vanquish wrongdoers.

He snuck into the theater all ninja-like.

ninja by Carrie =] July 30, 2008

ninja-esque 

Haveing such extreme skillz,that you are just as talented as a ninja.Your daily life is just so extreme, you could be drafted in to a ninja army at any moment!

"Dude!i can heal myself! im totally ninja-esque!

ninja-esque by jess nh June 14, 2006

Ninjasults 

to subtly drop insults without warning or provacation rendering the recipient defensless from this verbal assault as they are unaware and or have a delayed response

His verbal assasination of me was a barrage of ninjasults from which I could not escape.....well played sir.

Ninjasults by ACII August 1, 2010

Ninjagate '06 

Very simply, when Team Ninja got locked out of their own boards on accident and flipped out. Ninja chaos everywhere. It was a while before the admin realized what happened and hurriedly let them back in, and all's well.

Ninja1: WTF WHY CAN'T WE GET IN
Ninja2: She must have locked us out!
Ninja3: OH NO3Z
Ninja2: NINJAGATE '06!!!!!
Ninja3: The great ninja freakout!
Ninja1: *passes out*

Ninjagate '06 by Kassie123 September 1, 2006

ninja stars

Car wheels that spin after the car comes to a stop. 352ho

"sittin high on thirty inch ninja stars"

ninja stars by James Handy November 26, 2007