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n. - an open source IRC client originally for Linux. Based on gtk+, it is easily ported to Windows. Unfortunately, it's developers decided to make the Windows version shareware. For those familiar with the GNU Public License (GPL), this is less than kosher.
xChat: Sorry, this version of xChat has expired, please click here to register."
Unsuspecting Windows User: WTF!?!?
xChat by Vorondil November 12, 2004
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An Open Source IRC client, with several plugin interfaces. In several ways, superior to mIRC.

Arguably, helps break the Microsoft monopoly.
<teh_man325> D00d, you write mIRC scripts?
<trust> No.
<teh_man325> Wtf? You said you were a l33t programmer! I own j00!
<trust> a) I said 'reasonable', not l33t.
<trust> b) mIRC is shit. get a decent IRC client.
xchat by trust April 25, 2004
Means "wrong chat". Typically used in MMORPG chat when you type in the wrong chat, such as Guild Chat instead of Party Chat. Can also be used when you send something to the wrong person in case of instant messaging.
Adrian: Hey John, when are you coming over today?
Mark: ????
Adrian: Oh, xchat. I thought you were John.
xchat by fuwakami June 25, 2024

XChaCha20Poly1305 

A superior stream encryption cipher that is faster and a lot easier to implement than AES-GCM. It also has a lot less attack surface than AES-GCM due to less potential side channel attacks.
Person 1: We should encrypt this traffic with AES-GCM.
Person 2: FUCK AES, let's encrypt it with XChaCha20Poly1305.
A low and loud silver ford falcon, Once upon a time was very low, up until getting defected by the law enforcment agencys.
Damn cuz, Check out xchasr man, he be bumpin them dang ghetto rap again!
xchasr by rob July 1, 2004

xCatverse 

a wonderful person. he is very talented and amazing. he is also very pog and swaggy.
you’re such a nice person! you are like xCatverse!
xCatverse by Frog Lady ig March 13, 2021

White Widow Xchange 

A unique "web"site that offers custom t-shirts and merchandise for a variety of alternative cultures.
Check out White Widow Xchange @ whitewidowxchange.com
More from Urban Dictionary
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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