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2. Ninj
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!
1. Ninj
To do in the fashion of a ninja.
I'm ninjing like a pro, baby!
by Cath arsis Jun 3, 2004 add a video
3. Ninj
ninj (v.): to act in such a manner that could be construed as causing trickery, disruption, and/or pain on those who instill one's wrath
Ninj (n.): any one of a number of people who enjoy, and in fact take delight in, causing mischief and trickery on those who deserve it; i.e., mauling someone
v. "I'm gonna ninj you, you bloody prick, if you ever say something like that again!"

n. "I am so a ninj!"
4. Ninj
to act like or immitate a ninja
im a ninja i ninj things
5. Ninj
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.
6. ninj
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
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