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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
A girl who does ballet and only talks about ballet. Her schedule is filled with dance classes which does not allow her to do any other activity.
"Hey, do you know that girl Sally?"

"Yeah, she's kind of annoying. All she ever talks about it ballet."

"Wow, what a Bunhead."

"Hey Sally, you want to hang out this weekend?"
"I can't, I have dance."
"You're such a Bunhead."

"Yeah... I know."
Bunhead by Jen00 October 24, 2014
Word of the Day on October 6, 2026

trucker's tan 

A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.
I had a trucker's tan after driving for 10 straight hours on a sunny day.
Word of the Day on October 5, 2026
The phenomenon where adults salivate at children's toys
Every time I walk into the toy aisle, I catch myself kidulting over the latest action figures and LEGO sets!
kidulting by Emotional Cruiser October 12, 2025
Word of the Day on October 4, 2026
British slang for a scientist or technical expert, esp . when the speaker is not certain of the expert’s specific field of study. Not necessarily derogatory, but typically used by persons without a technical background. In the US, the equivalent would be “egghead”, “squint”, or “geek.”

Origin of the word is unknown. Started sometime in World War 2. Given the typical evolution of British slang, could easily have started because what these experts did was confusing or “baffling” to the common person.
According to the boffins downstairs, the murderer used a serrated blade.
Boffin by Agnon February 11, 2023
Word of the Day on October 3, 2026

Pee Calculus

When you have to pee in a movie but don’t want to miss anything, and must do the following mental equation: will the amount I have to pee cause enough discomfort to diminish my attention capacity for the remainder of the movie to an extent which is greater than the amount of the movie I would miss by making a mad dash to the restroom.
I saw Satantango last night, wonderful film but by the 5th hour I had to start doing pee calculus.
Pee Calculus by anorlondo October 1, 2026
Word of the Day on October 2, 2026
Literally "dirty" pronounced with a West Indian accent. Can also have a positive connotation, for example Sean Paul's album title "Dutty Rock".
"The girl is pretty but she corrupt and dutty!"

or, in a positive usage:

"Booya! That freestyle was dutty!"
Dutty by J Hall April 3, 2003
Word of the Day on October 1, 2026
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