kertard 

Is a word to describe a fucker that is also considered to be a bastard.A fornicator from a single parent unmarried household, or a guy that is a prick who gets a lot of ass.Can be used to describe a selfish unpleasant fellow. The word is street slang thrown around by Eastern Market DC ballers .

That kertard should give up the rock, I was wide open.

kertard by Joe Touchole November 20, 2007

Kerntard 

A person who has no developmental disabilities but struggles with the simplest of tasks

Why is that guy always screwing things up, he must be a kerntard.

Kerntard by OC1704 May 3, 2017

Ketard

noun, informal

noun: ketard; plural noun: ketards
ˈkēˌtärd
1.
a mentally handicapped person who believes the ketogenic diet is healthy and BY THE WAY SO FUCKING AMAZING

Most of these people are morbidly obese with coronary artery disease and circlejerk with the 3 or 4 people in the entire fandom that are of a humanly BMI. They interpret that the diet (under strict medical supervision) is used to control seizures in some children with drug-resistant epilepsy to mean it must be a cure all and make you hyper intelligent and healthy.

Ketards never shut the fuck up about their diet, they recommend it to anyone who ever says the word diet or weight. They're worse than gluten free fucktards.

Ketard by fu290329038190 December 3, 2017

keytarded 

A description of how wasted someone gets at any event involving the 80's while referencing an instrument that was heavily involved in music production during that time.

Oh man...I got super keytarded last night when we saw that cover band Bon Journey at that stripmall club.

keytarded by superrubber March 30, 2010

Keytard 

In online gaming and forums, a person who consistently fails at typing. This includes, but is not limited to: TYPING IN ALL CAPS, nevner correetcing typeios, neglecting to use punctuation (in cases where it is vital), and using excessive special characters!!!!!!!!!!@!>>>>!>>@!

Joshrcool: HAY WHATS TEH FASTERST WAY TO BEATT THSI BOSS MY GRUOP HASNT BEAT HIM YET??????????????????? <3333333333333 ANYONE THA THLEPS ME!!!!!!!!!!!!!!!!

Mmopwnage: You fail, keytard.

Keytard by Jason Hollowell December 23, 2008

kretarded 

the description of any idea one finds especially stupid. it helps if the idea in question either is conveyed through alliteration of or involves the letter 'k'

Person 1: Look at the 'K' on my glasses! It stands for Kool!
Person 2: That's kretarded.

kretarded by MrrrrH December 15, 2009

Ketard

ketogenic retard; normally used as a term against those who treat the keto diet as if it's the end all be all to weight loss and like calories mean nothing.

Many ketards will act as if keto is the only diet that can or will work, and are quick to attack anybody who says otherwise or criticizes the diet. (I mean, let's be real: most people can't live the rest of their lives without any form of carbohydrates, and they're often times bound to gain back the weight they lost.)

Ketard can also be used to describe a person who uses a lack of carbs as an excuse to overindulge on fats and other high-calorie meals, yet will still act above any other diets by citing those who have used low-carb diets to maintain a calorie deficit and truly lose weight to justify eating unhealthy foods like bacon-wrapped cheeseburgers cooked in extra grease (without the bun of course; carbs are the true enemy, don't forget!)

An example of a ketard can be found as one of the very writers of one of these definitions, actually! Notice how they resort to strawmanning anyone who isn't on their holy keto diet as a fat pig who is merely envious of the ketard who supposedly lost 100+ pounds? Quite the example right there!

Ketard by eat ass, skip class July 2, 2019