What is Ninj?
1.
To do in the fashion of a ninja.
I'm ninjing like a pro, baby!
2.
anything you want it to mean fitting the situation.
Damn you ninjed up that shot.
You look like a Ninj.
This Concert is hella Ninj.
See
3.
To have sex, usually very quietly and in a fashion that will avoid detection. From the phrase "Ninja that bitch."
Most often heard in the gerund form "ninjing".
Yo, no ninjing on the mountain!
See
4.
to act like or immitate a ninja
im a ninja i ninj things
See
5.
To steal or take wrongly; to hijack; to snatch; most synonymous with "to jack"
One who ninjes is a ninjer, or in ghetto parlance a ninja.
that guy totally ninjed my pen
See