Comes from the term Silent But Deadly (SBD): 'A fart that is not heard, but smells so horrid that it could kill.'
As ninjas too are silent... but deadly.
As ninjas too are silent... but deadly.
'Wind down the windows, I think there's a ninja in the car'
by I'mOldGregg April 21, 2009

Someone who is dedicated to hardcore savage rap like ile shank yo wit ma base ball bat an pap yo wit my gatt cuz im bad like a smak bag
Im a lyrical ninja ile use any word in a rap an make it fit fuk a clit wit a brick
Ile knock yout wit a blunt shank
Ile cunt yo wit a blunt instroment
Ile knock yout wit a blunt shank
Ile cunt yo wit a blunt instroment
by Step lupid March 26, 2021

That lil teacher's pet in class that has basically memorized the whole textbook. Her ego has visible stretch marks and her parents will hunt down your poor teacher just to send her to the top of the class. If she doesn't get her way, then grab some popcorn and gummy bears; watch the drama unfold. Entertaining when you ain't part of it. This lil bitch is literally asking you to choke her. Go ahead. Do it ! Please !
"I give up, the textbook ninja has officially taken over"
"Haha look at the textbook ninja over there, no friend! Makes sense"
"Haha look at the textbook ninja over there, no friend! Makes sense"
by mc!aren_senna May 28, 2021

Ninja games are a genre of games that people named “Dan”strongly dislike more then other named people
by Brown beanz September 1, 2021

A handshake involving many complex movements, but no one ever sees it because, as mentioned in the title, it is considered to be ninja-like, therefore cannot be seen.
by mads1103 November 29, 2013

Used to refer to hood/gang-affiliated black men that typically perform criminal acts & wander out in public in Pooh Shiesty/Ski-Masks (hence the term Ninja).
“I think we should be out. Three street ninjas just pulled up inna black Hellcat blasting Young Nudy.”
“Lets be out my nigga.”
“Lets be out my nigga.”
by HighNigga1337 June 15, 2024

A Sneeze Ninja is an elite, considerate human being who has mastered the quick-tissue-grab move to ensure a splatter free sneeze. To be dubbed a Sneeze Ninja one must prove that when they feel a sneeze coming on, they will get to their face first with a tissue so their hands stay clean and germ free, even if it's a window of less than .03 seconds.
You will never see a splatter from a considerate Sneeze Ninja, unless you yourself splatter: Sneeze Ninja will punish humans accordingly for the virus they have just inconsiderately spread.
You will never see a splatter from a considerate Sneeze Ninja, unless you yourself splatter: Sneeze Ninja will punish humans accordingly for the virus they have just inconsiderately spread.
Guy on train sneezes, making no attempt at a quick-tissue-grab, instead spraying his malicious germs into the public arena.
Sneeze Ninja side kicks him to the face with his glad-wrapped foot, and leaves filth spreader with a packet of Kleenex.
Sneeze Ninja side kicks him to the face with his glad-wrapped foot, and leaves filth spreader with a packet of Kleenex.
by The Original Sneeze Ninja May 23, 2013
