ninjinuity 

A synonym for computer hacking. A portmanteau of "ninja" and "ingenuity". The opposite of percussive maintenance.

From the XKCD blag: Over the next few days, we try pinning packages back to the Hardy version and downgrading. There are conflicts all over and lots of ninjinuity is required.

ninjinuity by jevanyn May 1, 2009

Ninjanuity 

An idea, invention or action that surpasses ingenuity in a sneaky way.

Now that's what i call ninjanuity!

What a ninjenuous idea!

Ninjanuity by Joey Shithouse March 2, 2007

Ninjanuity 

to react at a certian point in time where you would not be able to do something but only for that point and time, acrobatic like mind wise or even being sneaky

barbra was coming out of the kitchen with 2 plates in her hand as she started to fall derek grabed one of the plates and her with out dropping anything on the floor, and looking highly dramatic. dam derek that was Ninjanuity there

Ninjanuity by Derek Post July 3, 2007

Ninjanuity 

One's ability to be a ninja

How's your ninjanuity coming along?

Ninjanuity by The Red One June 13, 2009

ninjility 

Having the agility of a Ninja

He displayed his ninjility by dodging the cars on the freeway

ninjility by margaret-vandersnoodle March 27, 2009

ninjinity 

Using a Ninja blender for the first time.

That's the first time my Ninja blender has been used - you took my ninjinity!

ninjinity by Scissorsisters December 7, 2015

ninjinity 

The ability to be ninja or like ninja.

"Your ninjinity is amazing"

ninjinity by Troy and Jeremy March 5, 2008