n. an awesomely cool assassin. They are japanese...not chinese. Do NOT get them confused.
vb. to kill, maim, or torture someone. It is ALWAYS fatal.
vb. to kill, maim, or torture someone. It is ALWAYS fatal.
(n) Did you see that ninja catch that throwing-star with his teeth?
(vb) Don't make me come ninja you!
(vb) Don't make me come ninja you!
by Takashi Karaki January 30, 2009

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.
by Donatello April 1, 2003

realest ninjas
luda is one hell of a ninja, hos in different area codes hell yeah
michelle he's a ninja, go for it!
nat went ninja then came back???
luda is one hell of a ninja, hos in different area codes hell yeah
michelle he's a ninja, go for it!
nat went ninja then came back???
by hanrose December 25, 2007

by PLPimp March 23, 2007

Another way of adding prestige to someone's skills. Used to convey respect. Used in conjunction with the name of the person's skill.
by King Mango March 23, 2007

A recent type of mortgages given to those with no apparent means and little to no chance of rendering repayment. NINJA is an acronym referring to the borrower as having No Income No Job or Assets.
The housing bubble was greatly helped by financially suicidal bankers issuing NINJA loans like candy to anyone who could fog a mirror!
by esmith512 January 17, 2008

A raging case of herpies. They are called the ninja's because they sneak up on you when you least expect it, and put a hurtin on you...
by Pete Boy February 16, 2007
