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"yillin" aka chillin (-ch+y) ... is the act to chill, relax, let go, get buzzed, whichever term you prefer. Yillin most often is meant for getting high and doing nothing all day except for laying on your couch and listening to music. However, yillin can also mean to hang out with a group of friends and get high, drink, chill, etc, etc.

Deviations:

To yill
We are yillin
yillski

I'm yillllllllin.

The number of -Ls at the end of the root, yill-, stress the level of yill one is trying to achieve; as to give others an idea of what kind of night they are getting themselves into.
I'm finally finished with that 12 page paper I've been working on all week, can't wait to go home and yill real hard.

Dude, come over to my place tonight. We're all planning on yillin.
yillin by LaaaaaLa. November 16, 2011
Related Words
Yillson is about spirit and the power from his soul and absouletly God. He is the nice friend for you because of his very good attitude and personality. When you down, don't mind very long. Just see him and he can give you some advise that can help you to spare again the spirit as well. He is very simple and low profile like what he did with his motto, 'you are the best because of your awesome friend around.'
You are best like Yillson
yillson by Yillson December 28, 2017
Verb - God-like, esoteric, nine stand before oneself, to put oneself above others with a big ego,
Shayan- I’m straight yillin on these hoes
Brandon- these hoes have nothing on shayan cause he’s yillin on these hoes.
Yillin by Yvng_shay October 10, 2019
Someone that's doing something outrageously wild/stupid.
"Bro your yillin, chill."
Yillin by Young Yankertanker September 5, 2025
More from Urban Dictionary
anyone who succeeds in disgracing/over indulging themselves in the throws of clubland
28 hours and 4 clubs later, gurning for england but still refusing to go home - a total wrongun!!
wrongun by bevvers March 21, 2007
Word of the Day on October 8, 2026

square grouper

Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.
"Base we've got some square groupers floating outside of Miami harbor."
square grouper by slipsheet November 6, 2004
Word of the Day on October 7, 2026
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
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