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An online game that lags constantly so that its not possible to move or do anything in game
I was on a MW2 server yesterday and it was like a fucking lagfest!!
Lagfest by Your Penis112 September 2, 2010
when you play an online game with slow internet
a huge lagfest went on for 20 minnutes because of the bad weather.
lagfest by nobody else here March 9, 2017

Lagestee 

That last name of a guy who is always there for you, and is selfless and kind hearted. A person that is easy to fall in love with, and trust with all your heart.
Mr. Lagestee is awesome.
Lagestee by No one in particular c August 10, 2010
A period where extreme gamers can continually play MMORPG's or CounterStrike in one room/area over a Local Area Network.

Usually Power Levelling/n00b pwning takes place at LANFests.
Dude, wanna have a Diablo II LANfest tomorrow?
LANfest by Teh WinRAR October 16, 2008

lafester 

An annoying little sister who is the favorite over everyone else in the house who thinks she is all that and a bag of fucking chips but in reality is a little bitch
Look at my sister, she’s such a lafester
lafester by Hswnsbdjskskwjshs May 16, 2020

what is the worlds lagest word

what is the worlds lagest word
what is the worlds lagest word
More from Urban Dictionary

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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