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crazy ass mother fucker blackbelt who can whoop your butt without you even knowing they are there. Crazy skilled, stealthy, never seen. usually teens and mid 30s. Quick moving and very effective.
We are some of the most nastiest ninjas in the world.
by ray-cait-whatev April 03, 2010
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16
Facts (100% True):

-It only takes 1 ninja to screw 1,000,000,000,000 lightbulbs. and a similar amount of girls
-you can't see a ninja until it's too late
-ninjas can tell if a movie is good by looking at the cover
-The n word was a mispronunciation of ninja
-ninjas can beat mimes in the silence game
-a ninja always wins, otherwise they are not ninja
-ninjas don't touch the ground because it is afraid of ninjas
-infinity is just another term ninjas use to count their kills
-ninjas don't wear clothes, that is just their natural camoflauge
-ninja is the explanation for everything
-ninjas can swim on land
"Did you see that ninja-....?" (abrupt pause and silence).
by ~MR.D~ January 11, 2011
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17
Adjective.

Basically another word for cool. Except cooler, as its the word Ninja. Similar to badass in defintion yet far more badass, i think the best explanation of this word is infact 'Ninja'.

This is going to happen. It's Inevitable. It's going to happen big.

It will grow and spread across the Internet like wild fire with a shuriken.
*Roundhouse Kicks someone through a wall*
"Woah that's so frickin' Ninja!"

*A very nice hat*
"That hat is so Ninja!"

*Walks on the grass when there is blatantly a sign with clear instructions not to*
"Shit, that dude is ninja."

*Prefers Pirates*
"What a queer"
by ThatNinjaguy November 14, 2009
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18
An intense sexual position involving a man and a woman and a dildo, the way it is performed is
first, you turn off all the lighs in the room
second, you start banging the girl in the ass
third, you shove the dildo in her ass and pull out so she "does not know"
fourth, you jump to her side scream NINJA and punch her in the face.
Jenny:Damn, i got ninjad pretty hard last night.
Me: Yeah i fucking owned you
by JMANWASSUP August 18, 2005
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19
Ninja is a game in which two or more people must play. The game is played by slapping each other on the hand. You can only make one move per turn. Once an attempt at slapping the other person's hand is made, you must keep your body in that position until your next turn.
Person 1: Dude, my hand hurts from that Legit game of Ninja!

Person 2: Hella yeah it does, I pwned you in Ninja!
by Lavieta February 27, 2010
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20
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
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21
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
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