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清楚 or せいそ
Meaning clean, tidy in Japanese.

Have been adopted by VTubers to mean Wholesome. Seems to be used ironically in many instances.
"She's a psychopath!"

"What do you mean? She's totally seiso!"
Seiso by Notayler September 12, 2020
Related Words
Steiso • stetson • stepson • Seiso • steis • steivor • Seison • steino • Steish • stenson
A Japanese word which describes someone with a pure and clean image. This word would typically be used to portray the ideal Japanese beauty or an idol. Seiso can also imply a sense of wholesomeness.
Matsuri can be really seiso at times even though she’s a lolicon...

Nyanners is totally seiso, she is the most pure angel ever who would never ever steal your wife!
Seiso by Cruby September 14, 2020

Will Stetson 

"what music do you like"
"Will Stetson, the sing man.
Will Stetson by orpheuspog February 23, 2021
Seiso is a Japanese word that is used to describe a woman's character and appearance.

In a general sense, it means a woman who has a humble character, a clean appearance, uses beautiful words, and has beautiful posture and movements.
On the other hand, in the case of neatness used in the context of Vtuver, the meaning is slightly different.
Specifically, it adds not being lewd to its original meaning.
Seiso: When a lewd topic comes up, she doesn't like it. She skillfully changes the topic to the next one or is embarrassed.
Not Seiso: When a lewd topic comes up, she actively uses it to entertain and enliven the audience.

Seiso: She does not raise lewd topics. She will ignore or scold viewer comments when they are made on such topics.
Not Seiso: She may raise lewd topics to entertain viewers and herself.
Seiso by DeepJ January 1, 2022

stersonal 

A single gram of dried cured marijuana that is owned by a specific individual.
You cannot smoked them because they are Q's stersonals.
stersonal by Rav4chan June 6, 2017

Stetson-Harrison method 

A general method for estimating various numerical values. The values are pulled out of a hat (Stetson), i.e. made up. The purpose of Harrison is to increase credibility.

As a generalization, things other than numbers can also be estimated using the Stetson-Harrison method.
Our group did not have any experience or competence in determining a suitable scope for the project, so an estimate for the scope was produced using the Stetson-Harrison method.
Stetson-Harrison method by trurl December 15, 2008
More from Urban Dictionary
Basically the same meaning as ate.
x:"Girl your fit chewed today!"
Chewed by iod1o March 30, 2022
Word of the Day on October 19, 2026

Blue Movie 

A pornographic film.

The use of the word "blue" to refer to sexually explicit content was first recorded in Scotland in 1824. "Blue" meant "lewd" because prostitutes dressed in blue gowns.
I found your stash of blue movies under your bed.
Blue Movie by Shayde79 January 20, 2011
Word of the Day on October 18, 2026

fache-couture 

French slang, which translated, means "bull's fashion" but basically equates to "hyper trendy" or overly trendy. Used when a person wishes to express distaste at the latest fashion trend/fad, because it seems that everyone has a certain item of clothing or is wearing it. This term is most frequently heard in Paris but is slowly spreading to other parts of France.
1. That Burberry scarf is so fache-couture.
2. That purple American Apparel hoodie is so fache-couture.
fache-couture by bkgmh46x0x March 18, 2008
Word of the Day on October 17, 2026
A slang term for GLP-1 medications(like Ozempic, Wegovy, Mounjaro, etc.), usually referring to their appetite-killing, weight-loss, or “I forgot to eat” effects rather than the medical details.

Usage:
* Often casual, ironic, or meme-y
* Can imply effortless weight loss, suppressed hunger, or being “powered by pharmaceuticals”

Notes:
Not a brand name—just shorthand for the whole GLP-1 wave. Frequently shows up in online jokes, gym talk, and group chats where people pretend they’re *totally* doing it naturally.
“I’m not dieting, I’m just on that glippy.”
“Ever since the glippy hit, food feels optional.”
“That summer body? Yeah, glippy assisted.”
Glippy by Wild Stoner Appears December 14, 2025
Word of the Day on October 16, 2026

fauxstalgia 

Faux nostalgia. Faking old things in an attempt to recapture the feeling of times gone past, especially of technology that has passed.
Hipstamatic pictures, just like the vinyl-static added to digital recordings, is prime fauxstalgia
fauxstalgia by scotte61 December 16, 2010
Word of the Day on October 15, 2026

pajama casual 

Pajama casual is a term used when working from home and preparing for a video conference. All business above the waist and your pajama pants down below.
We have a Zoom meeting in a few minutes and I’ll probably go pajama casual.
pajama casual by jrod-knows March 31, 2020
Word of the Day on October 14, 2026
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