ninja 

i work in corporate america and we can not say nigga (not nigger) so we say ninja the word is not what it use to be so white people get off it. ninjas relax it has changed they still cant say it

Cedric the entertainer was about to get robbed and he said "ninja please cuz we want to beat yo ass we just need a reason"

ninja by papaduck253 December 26, 2009

Ninjad 

to steal or take unnoticed by another

Dave Ninjad from Sue a drink of her coffee when she was looking the other way

Ninjad by Levian July 23, 2009

wonderbread ninja

Paul the security guy's lover

Wow, Wonderbread Ninja, you're sure getting violent with Paul the security guy!

wonderbread ninja by The Reverend Alex February 18, 2003

Mall Ninja 

A young male who wears a dark trench coat and obsesses with death, violence, violent video games, and firearms (in a way vastly different from firearms collectors and those who enjoy shooting). This type of young male may have long messy hair. He also resembles the spazzy, violent, and unpredictable criminals that perpetrated the Trolley Square (Utah) and Von Maur (Omaha Nebraska) mall shootings. This type of male is barely interested in females, and may have recently been dumped.

The term "ninja" seems to have stuck to these types of young males because they behave as if they are invincible. Plus, the weapon of choice in these mall shootings has been a long weapon (rifle), which the mall ninja seems to prefer because it's length makes them feel they are wielding a sword (like a ninja).

"I'm worried about Jason, he always wears a trench coat, he plays violent video games, is obsessed with firearms and death. You know, since Jennifer dumped him, he's becoming a mall ninja."

Mall Ninja by repeal17thamendment January 11, 2010

Ninja Kiwi

Identified as american for their excessive use of awesome. They ruined SAS4 and proven in their Bloons TD series that they need balancing lessons.

What do valve and Ninja Kiwi have in common?
They can't balance for shit

Ninja Kiwi by Evil Toe September 4, 2018

ninja 

std such as aids/hiv or other terminal situation

hey, i heard your girl got that ninja!

ninja by 19DJF74 May 12, 2008

Carpet Ninja 

Ninjas that hide in carpets, only slightly less prolific than other household pests, but way more deadly.

Always routinely check your carpets for carpet ninjas.

Carpet Ninja by Abe Froman, Sausage King September 16, 2010