22
Ancient Japanese warrior, well trained in the art of stealth. Some tools of the trade include shuriken, swords, daggers, and knives. Ninja were part of a clan.
by Mad Walrus September 21, 2002
Get the mug
Get a Ninja mug for your barber Paul.
23
n. A warrior originating from feudal Japan who specializes in the art of stealth, assassination, sabotage, and molesting people without them even noticing. Ninjas are around anymore, but the term can still be used to describe one who is very sneaky, clever, sly or just a bad ass in general.

Here are a few requirements a Ninja would have had to live up to when they were active:

1. Ninjas must be able to make themselves unnoticeable in a empty room painted top to bottom in white.

2. Ninjas must be able to remain submerged in water for up to 7 hours minimum.

3. Ninjas must be able to survive a one-on-one fight against Chuck Norris for 6 WHOLE seconds.

4. Ninjas must be able to hold in a fart for 3 months

5. Ninjas must have an 11 inch penis MINIMUM. THIS WAS MANDATORY

6. Ninjas must be able to stop their own pulse for up to a week.

7. Ninjas can read a person's mind and memories just by staring at them

8. If a Ninja is captured, they must find a way to kill themselves.

9. Ninjas are expected to be able to get a 100% on every song on Expert mode in Guitar Hero 3. Failure will result in immediate execution.

10. A Ninja must have watched and memorized Nigahiga's "How to be Ninja" video
Person #1: "Would you rather be a Ninja or a Samurai?"

Person #2: "Yes"
by superdawge October 09, 2009
Get the mug
Get a Ninja mug for your father Bob.
24
Mammals who fight all the time and whose sole purpose in life is to flip out and kill people.

Natural predators with only one enemy in nature, namely Pirates.
by dragonxero February 25, 2005
Get the mug
Get a ninjas mug for your coworker Bob.
25
1.
Noun;

a highly skilled assassin. It is widely accepted that ninjas are capable of literally melting into surfaces where the shadow is sufficient.
It is generally uncontested that a ninja is fully capable of killing you in the center of a social event without being seen, heard, or witnessed in any way by your senses. Hell, he'll probably be gone before you hit the damn floor.

2.
Adjective; to describe an act of extreme skill or stealth.

2.
Verb; an act of extreme skill or stealth. Usually used as a hyperbole, because nobody knows exactly how a ninja works, as normal people have yet to see it in action.
1.
"Wanna watch Naruto with me? He's a really cool ninja."
"No, no, you got it wrong. Naturo is a pussy, not a ninja."

2.
"Gentlemen! We just seized an airfield.
...That was pretty fucking ninja."

3.
"I just totally ninja'd that fool!"
"I concur. Ninja'd that fool you did."
by Pencil Vania April 27, 2010
Get the mug
Get a Ninja mug for your mom Zora.
26
v. the act of stealing, swooping, or snaking something. usually the person who has been ninja'd upon does not realize it for a little while, and then they are mad when they find out that something of theirs has been ninja'd.
Hey man you ninja'd my chair. Why the hell did you ninja my book, Jordan?
by CPepe September 20, 2005
Get the mug
Get a ninja mug for your fish Vivek.
28
Facts:

1. Ninjas are mammals.
2. Ninjas fight ALL the time.
3. The purpose of the ninja is to flip out and kill people.

Weapons and Gear:

Ninja sword
Throwing stars
Ninja outfit

Testimonial:

Ninjas can kill anyone they want! Ninjas cut off heads ALL the time and don't even think twice about it. These guys are so crazy and awesome that they flip out ALL the time. I heard that there was this ninja who was eating at a diner. And when some dude dropped a spoon the ninja killed the whole town. My friend Mark said that he saw a ninja totally uppercut some kid just because the kid opened a window.

And that's what I call REAL Ultimate Power!!!!!!!!!!!!!!!!!!

If you don't believe that ninjas have REAL Ultimate Power you better get a life right now or they will chop your head off!!! It's an easy choice, if you ask me.

Ninjas are sooooooooooo sweet that I want to crap my pants. I can't believe it sometimes, but I feel it inside my heart. These guys are totally awesome and that's a fact. Ninjas are fast, smooth, cool, strong, powerful, and sweet. I can't wait to start yoga next year. I love ninjas with all of my body (including my pee pee).

Q and A:

Q: Why is everyone so obsessed about ninjas?

A: Ninjas are the ultimate paradox. On the one hand they don't give a crap, but on the other hand, ninjas are very careful and precise.

Q: I heard that ninjas are always cruel or mean. What's their problem?

A: Whoever told you that is a total liar. Just like other mammals, ninjas can be mean OR totally awesome.

Q: What do ninjas do when they're not cutting off heads or flipping out?

A: Most of their free time is spent flying, but sometime they stab. (Ask Mark if you don't believe me.)
One kid dropped a spoon and a ninja totally killed the whole town.
by Brian Damage August 27, 2005
Get the mug
Get a ninja mug for your brother Jerry.