ninjabeast 

A ninja beast is someone who is fast like a ninja and awesome like a beast. Or Someone who is just amazing

That guy is such a ninjabeast.

ninjabeast by NInjabeast January 12, 2009

niggabeast 

Animal like, subhuman creatures that are indigenous to
large cities. Characterized by sociopathic behavior and
law of the jungle demeaner. Typically stimulated to criminal
acts by hot weather and the availability of malt liquor.

Mayor calls for National Guard during power failure,
fearing niggabeasts will loot and burn city.

niggabeast by Slag Master July 30, 2006

Ninjabater 

One who is able to pleasure themselves in public areas with little to no indications of their actions

A male ninjabater could pleasure himself in a bathroom stall at work

Ninjabater by Turrry June 19, 2009

ninjabate 

Verb. To Masterbate with utmost stealthiness, similar to that of a ninja.

Spirited Away was such as shitty movie, I had to whip it out and ninjabate to pass the time.

ninjabate by Narcism July 16, 2008

NinjaMaster29 

"What's a joe shoe?"

A NinjaMaster29 is someone who slightly knows the anime JoJo's Bizarre Adventure,

and they know JoJo through memes.

It is someone who only knows part 3 and the latest animated part of JoJo,
and their favorite fight is probably Jotaro vs Dio from Stardust Crusaders.

Guys, we found a NinjaMaster29 in this discord server.

NinjaMaster29 by iAmTheBigGamer March 17, 2020

Ninjabate 

To masturbate, fondle, or otherwise touch oneself sexually with one or more unaware person(s) in the vicinity.

"She was so hot in that movie, I just couldn't help but sit back and ninjabate."

Ninjabate by Kurrie December 29, 2007

Ninjatastic 

So Fantastic, it's Ninja worthy.

That flip was Ninjatastic!

Ninjatastic by The Ninjirate April 9, 2007