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The tingly feeling you get in your butt after sitting for a long time. Also know as your butt falling asleep
We gotta get out of this car for a bit. I have a bad case of Assinosis.
Assinosis by Joonas4321 September 12, 2015
Related Words

Reverse Assmosis

The process of previous farts in a seat, chair, couch, etc reverse cycling up someone’s butt and being farted again.
Dude, someone must have been ripping ass in this seat because I’ve got some serious reverse assmosis going on right now.
Reverse Assmosis by BDE84 July 20, 2018
Where's the lube? Gotta go to the fridge and use the next best thing - Mayonaise

Mayonaise + Lube = Assinaise
Assinaise by Astam Outh August 19, 2009

Assmosis 

the process of absorbing heat from a seat left by the person previously sitting in the seat
John: Hey, this seat is warm.
Franny: Lucky, you get assmosis.
Assmosis by Julie Parker December 23, 2013

Atrinosis 

1. Atrinosis is derived from the latin word
"ater atra atrum : dark"
and the greek based word
"gnosis:Intuitive apprehension of spiritual truths, an esoteric form of knowledge sought by the Gnostics"

Defined as a negative or 'dark' state of enlightenment, where one's newly found higher knowledge is poisoned by darkness that corrupts it. Considered a disease to some, and a perfect way to view life to others.

2. An extreme Metal band from Canton, Ohio with melodic and progressive influences.
Example 1: "Last night I reached a state of Atrinosis." "No shit dude, thats deep..kinda weird but still deep"

Example 2: "When is Atrinosis gonna release another song?" "No idea, they're lazy fucks"
Atrinosis by Sobersomeofthenever April 25, 2011

assmosis 

When your head is so far up another person's ass you can't think, hear or see for yourself and must connect telepathically with the person whom has let you stick your in there ass for these sensory inputs.
As the tail of the human centipede, Kendar was forced to rely on assmosis to know what was happening in the word around him.
assmosis by hot biscuits January 2, 2015
More from Urban Dictionary
korean word for madam, older woman
Ajumma wait a moment
Ajumma by aintnotinbutnice July 5, 2009
Word of the Day on September 30, 2026

Slop Grenade

When someone uses AI to generate a large document, slide deck, or piece of code/software and tosses it over the fence for you to deal with.
Chad: Hey Brent I sent you the new backend API change to review, it’s only 100 files changed.

Brent: he just tossed me a slop grenade
Slop Grenade by Joe Squid September 28, 2026
Word of the Day on September 29, 2026
Short-hand for the word floccinaucinihilipilification, meaning the estimation of something as valueless (encountered mainly as an example of one of the longest words in the English language).
After we broke up, he was floxi to me.
floxi by Dr. Geek May 13, 2009
Word of the Day on September 28, 2026
NYC people who migrate north to Quahog, RI to see the leaves in the fall.
New York and everyone from there can fornicate themselves with an iron stick.
leafers by ss++ February 8, 2005
Word of the Day on September 27, 2026

Respectfully 

Precedes or follows either a gratuitously disrespectful or honest remark, originated in New York City. Used in similar fashion to "no offense" or "to be honest," interchangeably.
Ya mans is wild buns, respectfully. Respectfully he's washed.

After school, The Modells on Jamaica Ave was active. Respectfully.
Respectfully by john quan the first December 20, 2020
Word of the Day on September 26, 2026
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