the ninja 

(n): acquired immune deficiency syndrome (AIDS)

a serious (often fatal) disease of the immune system transmitted through blood products especially by sexual contact or contaminated needles

"I heard Magic Johnson caught the ninja"

the ninja by Tommy March 25, 2003

The Ninja 

A sex position where a dildo and a light switch is needed closed by. With the lights off proceed to have doggystyle sex with a woman and with a swift David Copperfield-esque motion, pull-out and stick the dildo in her so she thinks you are still in her. Then walk around to her front, switch on the lights, punch her in the face and yell, NINJA!!!

If The Ninja was done right, the mornings conversation should go like this:

Guy-"I totally Ninja'd you last night"
Girl-"You totally did"

The Ninja by Command Center February 24, 2009

The Ninja 

A Transmitted Disease Which Is Acquired By Either Having Sex Or Getting In Contact With An Infected Persons Blood aka The Ninja

Brian: Dude Help!
Angelo:What's Wrong?
Brian: I Don't Know Man, I Just Slept With Melanie!!!
Angelo: Dude I Think You Just Got The Ninja!!!
Brian: Dude I Can't Feel My Dick!!!
Angelo: Its A Good Thing I These Got Ninja Proof Condoms At Walmart For 7.99.

The Ninja by Ibetatestedyourmother December 28, 2007

the ninja 

The act a man pulls off when lying in bed with a woman fingering her and then slips his dick in so fast she never has a chance to say she didnt want to go that far.

she was nervous when i started touching her so i knew i would have to be stealth to get anywhere else, my fingers layed the distraction and the ninja got the action.

the ninja by Sir wiggles June 2, 2008

the ninja 

When you're jacking off in lecture hall, and a fat chick near you has her ass crack hanging out, you procede to blow your load in her crack while making a sneezing noise.

Dude, I was in lecture today, and totally pulled off the ninja.

the ninja by Rich-o December 28, 2007

The Ninja 

A sex “position” in witch the man walks passed a room and the woman has an orgasm. The position witch is most used by the ancient near supernatural assassins of feudal Japan. The only “normal” person to successfully accomplish this position was Chuck Norris.

Dude Chuck Norris just pulled the Ninja on that bitch!

The Ninja by Kevin Landesman March 6, 2007

The Ninja 

A concoction of one part vodka, one part orange juice, and one part Moxie, often done in a triple shot glass. Called such for its ability to stealthily overcome you before you even know it.

You ever heard of the Ninja?

I only had a couple at the party last night but I STILL got crazy drunk...

The Ninja by RuPaul December 9, 2008