closet ninja

A person who looks and behaves like a completely normal person and is typically not physically imposing, that actually has profound skill in the martial arts without anyone knowing of it.

So I was walking home sort of late last night with Dan when four guys jumped us! While I was cowering on the ground I heard Dan make some Asian noises and a bunch of thuds in quick succession. Then there was silence for a few seconds followed by the sound four bodies hitting the ground. It turns out my brother Dan is a closet ninja.

by AmericanSwagSociety December 26, 2010

ginger ninja

A person of the red-headed variety. Most likely to be used affectionately.

Ralph was known to his friends as 'The Ginger Ninja' due to his bright red hair and tendancy to leap from the shadows without warning.

by Fjool January 11, 2005

teenage mutant ninja turtles

One of the best U.S. cartoon series ever to exist, and first appeared as a comicbook in the early 1980s. Has 3 movie incarnations and 3 different series to air on TV, the newest appearing 2003.

Hey dawg, you saw Ninja Turtles yesterday? Them damn turtle boys iz bad azz fuck, my nigga!

by Tha Armada September 30, 2003

Surprise Sex Ninja

A hero for the new world, he brings about peace through the ancient art of Surprise Sex. His true identity remains a secret.

Oh My God, that guy was just attacked by the Surprise Sex Ninja.

by Innocent Bystander September 11, 2004

Off-Duty Ninja

A ninja who is not currently working and is now in the guise of a civillian.

When a bank robber pointed his gun at me, he had no idea i was an off-duty ninja. He realizied later, though, when I had kicked his ass.

by trinityiam August 26, 2004

beer ninja

one who stealthily can steal another's beer. basically a beer ninja is one stealthy m0-fo and can do it right in front of yo face.

Yo digga, tonite i stole a beer and used kim's fat ass as a screen when i leaned over and grabbed it off the fuckin coffee table. I'm a hella sweet beer ninja.

Hahahahaha Dave was so drunk i walked right up to him and stole his beer like 2 feet from his face. fuckin hilarious. Man that makes 2 beers tonite. I'm such a fuckin beer ninja, yo.

by jassu19 August 29, 2006

nigga ninja

A real black nigga that dispears at night becoming stealthy
as if he was a ninja

MAn1: bring jamal on halloween
Man2: why
Man1: he is a nigga ninja he cant be seen when we egg peoples houses
Man2: good idea

by ChrisNaps April 6, 2008