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A Ninjat is a part feline, part human creature. The species resulted from the union of a ninja and a cat. Ninjats are famous for their lightning fast reflexes and their ability to shoot claws out of their fingers. They were created by the U.S. government during WWII in order to beat the Nazis.
Person #1: Hey, what are these weird scratch marks doing on my curtain?

(Ninjat jumps out)

Ninjat: DIE, infidel!!!!! meowy meow meow!
Ninjat by JT30 March 5, 2010
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Ninja Pinch 

To steal something from somebody using stealth. Without anybody noticing the act...
I like that pen of John's. I'm totally going to (Ninja Pinch) it, when he puts it down.
Ninja Pinch by MbØt~Mk.II® March 13, 2015
Related Words

Ninja Pooping

The art of layering the surface of toilet water with toilet paper to minimize the sound of splashing.
That's the last time I have Taco Bell for lunch at work. Now I'm going to have to do some ninja pooping.
Ninja Pooping by Extra Mayo January 27, 2013

Stage Ninja 

A wannabe roadie. Usually has the clothes and the tats but no real skill. Constantly boasts about where he has worked or how long he has been in 'the business'. Criticizes others openly but never offers an opinion of his own. Often carries a large quantity of useless keys to look important.
Get rid of these stage ninjas and get me some stage carps who know their stuff
Stage Ninja by dingoetmybaby November 5, 2019

Ninja Nude 

The act of fully undressing and taking a nude in a classroom, meeting, lecture or other busy event. Almost impossible to accomplish without getting caught.
James tried to take a Ninja Nude during the lecture for his girl and got his stupid ass caught!
Ninja Nude by UrbanDict is life July 13, 2016

pirate-ninja

a kilowatt-hour per martian day
Mark Watney created the pirate-ninja as a standard unit

The Law of Inverse Ninja Strength 

When confronted by ninja(s), the individual ninja will be far more powerful than a group of ninjas. To see the effectiveness of a group of ninjas simply use the equation power= 1/n, where n is the number of ninjas
Don't worry about the group of 1,000 ninjas, worry about the single guy, according to The Law of Inverse Ninja Strength
More from Urban Dictionary

briefcake 

"Did you check out the briefcake in courtroom C?"
briefcake by Ben Frey April 6, 2006
Word of the Day on November 3, 2026
Brought to public attention by Bob Woodward and Carl Bernstein in the book on the fall of Richard Nixon, All The President’s Men, ratfucker was Nixon’s term for a political operative who sows chaos among opponents; an agent provocateur. It is thought to have originated among campus political rivalries at USC, and seems to have some usage in the US military.
Along with Nixon’s other ratfuckers, Roger Stone caused fights at otherwise peaceful Democratic Party protests to generate a false narrative that the Democrats were violent and dangerous.
Ratfucker by Ricky Ramjet November 2, 2017
Word of the Day on November 2, 2026

countrypolitan 

Term used to describe someone who is a mix of both rural (country) and urban (metropolitan) lifestyles/upbringings. He/she is typically equally comfortable in both settings and is able to seamlessly slip back and forth between the two, appreciating the characteristics of each.
That ol' gal of mine drives the 12 lane freeway during the week and a John Deere on the weekends. She likes opra and the Grand Ol' Opry. I love them countrypolitan women.
countrypolitan by MOChick November 7, 2006
Word of the Day on November 1, 2026

Witch Bath 

A bath consisting of a variety of slats, oils, soaps or any other added ingredients such as fruits, milks, herbs or any other spices for health or beautifying benifits.
She brought home alot of stuff and took it to the bathroom. She must be taking a witch bath.
Witch Bath by carnieboy30 October 26, 2020
Word of the Day on October 31, 2026

kinktober 

An excuse for people to write porn with different types of kinks throughout the month of October.

Smut Fanfiction
That chick doesn't write often but when she does, its for Kinktober.
kinktober by Kinkiest July 12, 2018
Word of the Day on October 30, 2026

proper lad 

a lad that is such a lad that he is a proper lad
person1:did you see bob
person2: ya he was a proper lad
Word of the Day on October 29, 2026
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