Ninjaic 

The act of stealthy or graceful movement.

To watch him move across the steel was ninjaic.

Ninjaic by Patty Melt 85 June 8, 2018

Ninjuice 

When you earn some street cred as a 90s style Ninja fighting a minotaur in a flannel shirt.

Also a very painful beverage that tastes like a punch to the face.

Make sure you don't get the ninjuice, it will knock you out.

Ninjuice by Mark SF June 6, 2007

Ninjacques 

Ninjas called Jacques are referred to "ninjacques" however, there can be only one. He will murder anyone that pretends to be a ninja or a jacques, or any combination of the above.

Hi my name is NiNJACQUES, you cannot see me

Ninjacques by NiNJACQUES August 12, 2009

ninjacow 

An intense bovine version of a ninja, that nobody expects.

Right when the bad guy is about to mug the farmer, and burn down the farm, the ninjacow strikes, and completely destroys the bad guy, before returning to it's herd.

ninjacow by ninjacow July 16, 2010

ninjacept 

to intercept something with extreme skill, and quite often, by jumping really high

announcer: "...and joe jumps into the air very very high...oh! what a catch, that is the best ninjacept i've ever seen..."

ninjacept by dionyses May 14, 2003

Ninjai 

A little Ninja. www.ninjai.com. Warning: He kicks ass.

Demon dude: "You cut my foot off!"
Ninjai: "I apologize, I meant to cut off your head."

Ninjai by Teh Deputy November 24, 2003

ninjaculate 

the act of ejaculating on someone without the person knowing.

"While Brody was sleeping I was asked by a friend to ninjaculate on his face, covering his whole mouth in my judo sperm.

ninjaculate by ninjaculator October 26, 2009