a free runner who is so sick he could just be a descendent of a ninja,
a person who is amazing and sneaks outa no where
the guy who always wins in hide and seek
but is never found

v. the act of stealing, swooping, or snaking something. usually the person who has been ninja'd upon does not realize it for a little while, and then they are mad when they find out that something of theirs has been ninja'd.

n. A Japanese warrior trained in secret techniques of espionage and assassination.
The word literally means 'patient person' (the kanji for nin being 'patience' and the kanji for ja being 'person').

Very fast motorcycle produced by Kawasaki.

To insidiously and calculatedly disseminate massive quantities of misinformation in order to completely obscure and divert attention from the real meaning of something nefarious.

Hack.

A universal replacement for any verb.

Ninjas In Need, Just Ask Foundation.

The fundraising branch of the Secret Ninja Society. You probably haven't heard of it, it's that secret.