Ninjad 

when you are assassinated by a lone ninja who used only a spoon to cut out your throat and sent you straight to hell

Satan: so how did you end up here
Bob: somebody ninjad me

Ninjad by Maste Hades November 24, 2009

Ninjassasin 

1. noun. Any one who is both a ninja and an assassin. Those aforementioned must be incredibly bad-ass (see tags) and kill a yak from up to 500 yards away... with mind bullets. They're also probably Asian, Black or (rarely) American. If they are American they must have some way of showing of they're badassittude at all times. (i.e. a tattoo of a pretty butterfly) Last, and most importantly, to be a certified ninjassasin one must carry an arbitrary number of weapons (Lets say 12 not including their fists) on their person at all times.

Person Numba 1: Yo, did you play Assasin's Creed lat night?
Henchman #4: Yeah man, that guy is such a ninjassasin!
Bystander 3: What the hell is a ninjassasin?
Thug: Go look it up on Urban Dictionary.

Ninjassasin by Space Pope I17 January 20, 2010

ninjasturbate 

The act of masturbating silently. (orgasms or bodily fluid noise)

Jacks landlord was on his ass for making noise. So he had ninjasturbate

ninjasturbate by Chinchillagod1000100100010110 January 24, 2012

NinjaStar 

A 14-year-old short squeaker that claims he's not a short squeaker and he can't take a joke no matter what you joke about and also he gets mad at everything.

he

Oh, shit guys it's a ninjastar run!! Before he blows out our ear drums.

NinjaStar by AnonymousOnUD August 5, 2017

Ninjaier 

A person who hangs around Ninjai.com and is a regular fan.

Rujtu, a long time Ninjaier, has been proving himself to be a very worthy character at the late.

Ninjaier by Gruk January 9, 2004

Ninja Ram 

a much better mascot then the bangor rams

the ninja rams pwn'd the witches on friday

Ninja Ram by JJSweetBags May 16, 2007

Ninja Lightbulb

The act of using a long flourecent Light bulb as a Katana, and karate style hitting your friend making the bulb explode

I can't wait for another bulb to burn out so we can play some Ninja Lightbulb.

Ninja Lightbulb by Geoff Robbins May 28, 2007