OFF meet 

OFF meets are typically small online get-togethers in japan with their end goal of committing a group suicide.

Notwitstanding the statement earlier, Other contries also have online group suicides. It's that Japan is one of the more popular contries to do this.
OFF meetings are typically anonymous until the people partaking meet up and commit suicide together.
An OFF meet is just one of many names one can give a group suicide meeting. Truly, It can be anything for it is simply an online internet chat room talking about killing, or offing themselves.
Many internet providers ban websites dedicated to making OFF meets. But there are still countless circulating the internet.

Informal:
Hey bro, I just found this sick OFF meet website, wanna go?

Context:
Person 1: Is everyone from the OFF meet here?
Group: Yeah
Person 1: Great. Let's jump.

Formal:
News Reporter: Just now, there are dozens of group suicides across the country happening now. Some are calling them "Suicide Pacts"; others "OFF meetings". If you or anyone you know is partaking or thinking of doing so, please call the suicide helpline in your district.

OFF meet by じさつ June 10, 2021

off to meet the wizard

to go off in to the wilderness to take a piss

hey jim i am off to meet the wizard

or man i just meet the wizard it was awesome

off to meet the wizard by bulls81 June 11, 2009

off-sight meeting 

A meeting that has no real purpose or clear direction.

However, breakfast is usually served, therefore it is still beneficial that you attend.

"Hey our boss has been talking for a while, but does any of it really matter?"

"Nah, this is an off-sight meeting."

"Ah, well at least these scones are delicious."

off-sight meeting by onetimeforall August 28, 2009

jerb 

well known from south park
rednecks get angrry that future folk took there jobs so they yell
They took ouare jerbs!

Them future folk took ouare jerbs!

jerb by Jimberley Kim April 7, 2005

Cheeks 

An Irish phrase meaning shit, derived from ass
(Not to be confused with the literal description of one's buttocks)

"Did you hear the song Aylek$ dropped?"
"Hardly. Her music is absolute cheeks."

"My boyfriend say LaFlame is cheeks."
"Tell your boyfriend I said it's his mixtape that's cheeks."

Cheeks by thecartisan April 26, 2020

sans sheriff 

Lawless use of fonts or typography, with no regard to aesthetics or legibility

I'm putting this CV straight in the bin. Written totally sans sheriff.

sans sheriff by Jamarley July 3, 2019

Breadhead 

Someone who is addicted to obtaining money and building wealth. A money addict and fanatic. Breadheads often work more than one full-time job, and some even participate in illicit activities to "obtain the bread".

A breadhead is like a crackhead, but for money instead of crack.

Breadhead by 🅱️ U S 3 4 8 March 30, 2022