In reference to the Ninja/Ninja Pro perk of the CoD games. It's basically a fancy way of saying that you don't have trouble being quiet/sneaky.
Most often used when your friend is worried about you making noise when sneaking out of or into your house.
Teen 1: C'mon man, let's go!
Teen 2: Did your dad hear you?
Teen 1: Relax buddy, I'm running Ninja right now.
When one Comments or Likes a post up to 2 seconds after its posted. (On Facebook.)
WARNING: This action can get very annoying for the person recieving the notifications.
Girl 1: Oh man, I was on Facebook last night, and this guy is TOTALLY ninja-commenting / liking everything I post! SOO annoying.
Girl 2: Oh jees. That sucks...
Square Pink Ninja is, well, imagine if Chuck Norris merged with Bruce Lee, only smaller and Pink. He pops up in random pictures, and appears in a small comic strip on Myspace. After only two weeks, Square Pink Ninja already had over a hundred and fifty fans. He is the intellectual property of Dash and Speedy, and was created during the summer of 2008.
you can find Square Pink Ninja at http://www.myspace.com/SquarePinkNinja
Square Pink Ninja, is Awesome multiplied by Badass, and added to Ninja-ness in one small pink package.
Ninjas made of sausage that are holy, and can fly
Those Holy Flying Sausage Ninjas just killed my gerbil!!!!!!!!
December 5th,mark your calendars
I will watch ninja in ninja from fortnite day
Where someone can undo someone's bra with a finger and a thumb. It is easy to do, but not to understand... It involves squeesing either part of the strap and releasing.
Betty: God, I hope Jonny doesn't do that ninja shit thing today...
Jonny: TWO FINGER NINJA TECHNIQUE!!!
Betty: For fuck's sake
A person (specifically Black, but can be Hispanic, or Asian) that knows martial arts of some kind and is between the ages of 13-19. He also has to be someone who usually is: clever, quick,(not literately a "Mutant")has done some "off-tha-wall" shit, somewhat secretive, chills in dark urban areas,(such as a back alley or in the depths of the ghetto) and basically, a bad ass, yet a cool enough person to hang with.
That dude just drop-kicked that cop in tha faze while taking the gun from hiz holster, turned and elbowed one cop that ran up, THEN ducked-n-rolled under tha last cop's leg, shot him and FRONT FLIPPED over tha squad car and dashed 2 his hideout with tha money!
---That's ninja nigga shit!---