Ninja Test

A tough and difficult challenge that involves personal risk and you need to be skillful to complete it.
Often entails suffering a degree of pain.

The scene: A shear crag with rocks and the sea below.

Dave: Come on Peter lets go scuba diving down there.

Peter: Are you crazy? We'd need mountain gear to climb down plus all the that scuba gear weighs a ton.

Dave: No we don't man, it'd be a true ninja test for us!

Ninja Test by Groove Rider February 19, 2009

Ninjatastic 

So Fantastic, it's Ninja worthy.

That flip was Ninjatastic!

Ninjatastic by The Ninjirate April 9, 2007

Ninjatext

Ninjatext is text that is the same color as the background it's on. You can only see it if you highlight it. It's really annoying.

People usually use ninjatext to say "jk" or "sarcasm" without ruining the joke.
It gets it's name because it's stealthy, like a ninja.

I was offended when that guy on that blog said he hates black people, but then I saw his ninjatext that said "Just kidding, I'm not racist."

Ninjatext by TheLollercoaster December 5, 2010

ninjatastic 

combination of ninja, and fantastic. used to describe things that are, well, ninjatastic.

dude, my car is completely ninjatastic.

ninjatastic by Mechanic June 26, 2004