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OpenBSD is a security focused BSD, a Unix-like operating system derived from the BSD 4.4Lite release.

One of the only BSDs actively removing non-BSD compatible code (including anything lisenced as GPL or LGPL code).

It is freely downloadable at anytime by anyone in any country for any use from multiple locations around the world.

The project maintains a small income by selling release CDs, shirts and posters. The money is used to buy hardware and help secure programmers for specific tasks that would take longer then free time might allow.

OpenBSD was forked from NetBSD eight years ago by Theo de Raadt, who was one of the founders of the project, after being forced out of it because of his outspoken attitude.

OpenBSD developers and users tend to be very direct and react poorly to people new to mailing lists not greping through previous messages for answers to their questions before asking. Because of this, they have an image for being very antinewbie.

OpenBSD has one of the most thorough documentations of any of the Unix-like and Unix derivative operating systems.

The project's mascot Puff has most recently been given the theme of Puffy Hood.
OpenBSD is used in may firewalls around the world and has the best security record of any of the BSDs.
OpenBSD by Nate December 23, 2003
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Re-opening Anxiety

The anxiety of post COVID-19 opening of everything without social distancing or sanitary precautions.
Also know as re-entry anxiety.
The thought of going back to our old filthy, pre-COVID-19 habits is giving me re-opening anxiety. Puleeeaaasseee let's at least not go back to the unsanitary, nasty habit of shaking hands!

Openheimer's 

The condition in which you think you forgot, or actually forgot, to close something important - your car, front door, stove, etc.
I can't remember if I locked the car. I must be getting Openheimer's.
Damn, I left the car open again. I've got Openheimer's for sure!
Openheimer's by brainyuck May 12, 2011

Fridge Opening Syndrome 

When you repeatedly find yourself opening and staring blankly into your fridge at regular intervals without cause. It's a prime indicator of needing to either re-evaluate your purpose of existence, or go get some more groceries.
Mike: "Hey, you wanna go play Smash Bros?"
John: *opens and stares into his fridge*
Mike: "...bro you really gotta fix that fridge opening syndrome and find a hobby."

eye-opener 

1. A real suprise

2. A drink of liquor taken upon awakening

3. Anything that enforms or enlightens one
Listening to his lecture was an eye-opener.
eye-opener by Light Joker October 2, 2005

OpenSUSE 

OpenSUSE is the best Linux distribution ever made. Everything is perfect and simple in it. But for some reason it is not as popular as Ubuntu or Arch. Only NixOS can be more underrated.
"I installed OpenSUSE and everything works in it. I didn't even set up anything."
OpenSUSE by edvardeishen June 26, 2021

thigh opener

any type of alcohol that will turn an usually chaste woman into a raging nymphomaniac.
Everyone kept telling me forget Betty, she's gonna die a virgin, well after a couple shots of thigh opener........... need I say more.
thigh opener by elpasospike November 14, 2009