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client-server 

A common form of distributed system in which software is split between server tasks and client tasks. A client sends requests to a server, according to some protocol, asking for information or action, and the server responds.

This is analogous to a customer (client) who sends an order (request) on an order form to a supplier (server) who despatches the goods and an invoice (response). The order form and invoice are part of the "protocol" used to communicate in this case.

There may be either one centralised server or several distributed ones. This model allows clients and servers to be placed independently on nodes in a network, possibly on different hardware and operating systems appropriate to their function, e.g. fast server/cheap client.

Examples are the name-server/name-resolver relationship in DNS, the file-server/file-client relationship in NFS and the screen server/client application split in the X Window System.
There is no example sentence for this term.
client-server by illEATurHARTout April 12, 2004

client natural selection 

The process by which would-be difficult or annoying clients magically disappear in a Darwin-like fashion and only the fittest clients survive.
Thank goodness for client natural selection. Even after just one conversation it was clear that client would have been a real pain to work with!
client natural selection by bobo76 November 21, 2013

Sigma Client 

Sigma Client is a Minecraft cheat client. Only Sigma 4 and 5 are in the public release. It is a mixture of Leaked PvP's Jigsaw Client and Omikron's Omikron Client. It has a blur and transparent great UI design. It has insane bypass and disablers from 2015-2020, but it is discontinued from 2021 December. Many people said it is a miner or virus, but Sigma Client developers prove that Sigma Client isn't a miner and not a virus. Still, Sigma Client has bypass on most servers with a good config now.
(Minecraft player) Did you download and try Sigma Client today?
(Sigma Player) Yes, it has an insane bypass on hypixel.
(Minecraft player) Nice, I will also try it later.
Sigma Client by Snoocomics9452 April 13, 2022

Sigma client 

The best hypixel bypass coded by a cute femboy called omikron
Person 1: I use sigma client.
Person 2: Marry me have my kids 😍😍😍🤩🤩🤩
Sigma client by rzas August 1, 2021

Sigma Client 

A rats nest coded by a fat nigga named Omikron, this client is pasted and worse of all bitcoins the shit out of your pc.
I'm sigma client and I get wd banned with 10bps flight.
Sigma Client by Niggabeans21 November 2, 2020

Sigma-Client

A rats nest of a client, pasted by Omikron the kid lover himself. Kiddos use this client to have their pc mined of btc.
I'm Sigma-Client and I get wd banned with 10bps flight and Omikron abuses me.
Sigma-Client by Niggabeans21 November 2, 2020
More from Urban Dictionary

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

Pee Calculus

When you have to pee in a movie but don’t want to miss anything, and must do the following mental equation: will the amount I have to pee cause enough discomfort to diminish my attention capacity for the remainder of the movie to an extent which is greater than the amount of the movie I would miss by making a mad dash to the restroom.
I saw Satantango last night, wonderful film but by the 5th hour I had to start doing pee calculus.
Pee Calculus by anorlondo October 1, 2026
Word of the Day on October 2, 2026
Literally "dirty" pronounced with a West Indian accent. Can also have a positive connotation, for example Sean Paul's album title "Dutty Rock".
"The girl is pretty but she corrupt and dutty!"

or, in a positive usage:

"Booya! That freestyle was dutty!"
Dutty by J Hall April 3, 2003
Word of the Day on October 1, 2026
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
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