ninjas 

teenage mutant turtles trained by their giant rat master

ninjas are turtles as well as mammals

ninjas by Raphael April 1, 2003

Ninjas 

Homies, Friends. A group of mulitple white people, and 1 black man from the can. Started up by a white man from the can, that went to jail and came back calling all his friends NINJAS. Ninjas are chosen not anybody can be a ninja.

Person 1: Hey whats up muh ninja?

Person 2: Chillin my ninja.

Person 3: Whats up my ninjas?

Person 1 and 2: You aint no fuckin ninja person 3.

Ninjas by Redneck Rambo September 24, 2009

Ninjas 

Anyone that uses ninja shit to steal or hurt anyone in present day times. They are masters of destruction and normally operate at night but are known to ocassionally come out in the day if a "Mission" is deemed to be worthwhile. They are often considered to be normal in school except they have no after school activities so they turn to vandalism to fill the gap. They are masters of video games and computer systems and range in physical abilities normally fairly fit because of the things they do. DO NOT FUCK WITH A NINJA

1.) A bunch of ninjas tagged the school last night
2.) A fucking ninja slashed my tires now i have to walk cuz im a fag
3.) I lost my wallet when I left it in my locker, god damn ninjas G'ed up my shit
4.) Konrad bosselman and Robert Long are the most famous known ninjas disappearing after a store heist

Ninjas by OXHEAVYARMSXO January 14, 2008

ninjas 

horrible stomach cramps and pains that sneak up on your like a band of ninja fighters

Ohhh god the ninjas! I shouldn't of eaten those eggs, being egg intolerant as I am.

ninjas by Locustking December 22, 2008

Ninjas 

Asians that have been trained high in the Chinese mountains

mom there’s ninjas on the roof again

Ninjas by Hansdumb May 18, 2018

NINJAS 

Abbreviation for NO Income No Job Assholes. Was originally a mortgage term for no income verification loans.

Also now major voting block of Obama supporters who expect something for nothing.

Those people bought into this neighborhood with a NINJA loan and now three months later they are foreclosed on and have trashed the house.

Acorn got the Ninjas out in force to vote for him by his campaign promises.

NINJAS by Norby August 16, 2009

ninjas 

Any of various warm-blooded vertebrate animals of the class Mammalia, including humans, characterized by a covering of hair on the skin and, in the female, milk-producing mammary glands for nourishing the young.

Ninjas are mammals.

ninjas by Donatello April 1, 2003