Ninja

A general term for any STD. The Ninja creeps up on you when you least expect it to. Having unprotected sex is a good way for the Ninja to get a hold of you.

Guy 1: I haven't been feeling very well lately...
Guy 2: I bet that chick you hooked up with at that party gave you the ninja.

by Latina_LC July 29, 2009

Ninja

A ninja is a nigga who can't say nigga at the moment. It is especially useful for white niggas who will get beat down or shot for saying nigga around black niggas who don't know them yet, but the word ninja allows the black ninja to say to the white ninja, "Hey, my nigga!"
If anyone edits this post, you are retarded, because this one is actually real.

What's up my ninja?
=
What's up my nigga?

by pierremariejean March 3, 2011

ninja

a well respected asian

chong is a ninja

by kong pow November 19, 2009

Ninja

A more PC name for a black person.

That ninja stole my bike!

by JuicemanMatt December 17, 2008

ninja

a term vastly used in MMORPGs or games that consists of various item drops from monsters

n.
a person who neglects the concept of fairness and steal item drops found in MMORPGs without the act of "rolling" against other players to recieve the item

v.
to loot without "rolling"

1.) he ninja'ed my fucking gloves!!!!!
2.) omfg i fucking got ninja'ed last night in MC
3.) he's a fucking ninja

by edche July 16, 2008

ninja

to be extremely skilled at something, to have a lot of useless skills that won't help you at life

Did you see that one guy on tv? He was so ninja at cracking 67 eggs in one minute.

by ec0fr3ind1y May 6, 2009

ninja

Someone who is a mistress to a man while he is in a relationship with another woman.

Yo, that is my ninja over there talking to my girlfriend.

by LaTrice March 23, 2007