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When the performance of something significantly degrades over time.

The names comes from the Nvidia Kepler GPU architecture (GeForce GTX 600&700 series), which was infamous for suffering severe and steadily bigger performance losses in games after its release.

This was caused by poor optimisation in Nvidia’s drivers after the release of the Maxwell architecture (GeForce GTX 900 series), as without shader optimisation the raw performance of Kepler cards fell off a cliff.
Person 1: Have you seen how slowly my computer’s been running recently?
Person 2: Yeah, it’s been Keplered
keplered by OptiMegaCell October 1, 2018
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Kellered 

Engaging in or witnessing sexual interactions involving ocular enthusiast and foremost god of gay porn, Colby Keller.

Results include being overcome by a combination of lust, awe, emotional fulfillment, and mild to moderate asphyxia. Similar to the experience of eating a large and lovely cake.
Tommy has had a spring in his step since he got Kellered last Tuesday.
Kellered by I saw penis March 7, 2014
Related Words

Keppered 

When you're so baked you look retarded.
Friend 1: 'You see that guy over there?'
Friend 2: 'yea bro hes Keppered for sure!'
Keppered by SavageDude420 April 17, 2017

Hellen Kellered 

The level of drunkenness one reaches when he/she is blacked out and is no longer able to pronunciate words in any sort of fashion. In other words the persons are blind / deaf / dumb.
Sir Tommy Pickles: Dude, check out Roxy! She's hitting on everyone, falling all over the place and I can't even understand a word she's saying.

Mo'Nasty: I know dude! She is completely "Hellen Kellered" right now.
Hellen Kellered by KingKrule January 2, 2012

Kellered 

To be so drunk that one is unable to speak, see, or hear, such as how Helen Keller was unable to do any of those things.
"Yo man I'm gonna get soooo kellered tonight that I'm still gonna be drunk when I go to work tomorrow."

Hellen Kellered 

When you are getting head, and pull your dick out and cum in the girls eyes. While you're doing this you clap you're hands over her ears (ya know hard enough so she cannot hear for a little bit). Now she can't see or hear, just like Hellen Keller!
I Hellen Kellered your Mom last night.
Hellen Kellered by Pat Phillips April 20, 2008

Hellen Kellered 

When you pull a lower vehicle into a spot with a curb and feel your way forward until you hit something.
Collin Powell totally Hellen Kellered that curb with his $97K Fisker Karma.
Hellen Kellered by Jalopnik December 26, 2011
More from Urban Dictionary

Throat Sweats 

The feeling and build up in your mouth/throat of saliva that sometimes accompanies nausea.
Oh man those burritos gave me the throat sweats, I hope I don’t have food poisoning.
Throat Sweats by TacoFings420 April 23, 2024
Word of the Day on October 11, 2026
Being ignored by someone when making a statement or asking a question. Also known as blanked and turfed.
Person 1: Did u watch ** last nite?
Person 2:......
Person 3: O no u got aired!
aired by Pietro February 9, 2005
Word of the Day on October 10, 2026

piddlefart

Instead of doing my homework, I decided to piddlefart around for two hours.
piddlefart by Rene April 25, 2005
Word of the Day on October 9, 2026
anyone who succeeds in disgracing/over indulging themselves in the throws of clubland
28 hours and 4 clubs later, gurning for england but still refusing to go home - a total wrongun!!
wrongun by bevvers March 21, 2007
Word of the Day on October 8, 2026

square grouper

Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.
"Base we've got some square groupers floating outside of Miami harbor."
square grouper by slipsheet November 6, 2004
Word of the Day on October 7, 2026
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
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