person who acts like a retard under the influence of ketamine (k)

another name for the fans of K-mart.

/k/ refers to "kopitiam" (coffee shop/chit chat) section the lowyat.net forum (which is one of the largest community forum in malaysia according to Alexa)

/k/ was created with efforts to make the "kopitiam" section of LYN forum a wannabe of /b/

/k/ is usualy where malaysian teenagers who have nothing better to do with their time post nonsensical stuff

Anyone whose name begins with a 'K' and acts like a mental midget.

a retard
based off of a tard my dad went to school with named jimmy, thus they called each other jimmy tards in his retarded honor

People who do lines of k in the bathroom of malls, then walk around really fucked up screaming at people and talking to strangers and making obscene gestures. These people also go to raves, fucked up on k, staring at visualizations, thinking they're on the moon, because they can't walk from all the k. Soon, they think they are gods or Al Pacino, and will start talking in a thick cuban accent telling everyone that they're going to get shit on.

ktard, k-tard (n):
Someone who regularly consumes mass amounts of ketamine to the point that they become permanently retarded. Ktards are known for being blissfully unaware of their surroundings and life in general. The only care about k and will stop at nothing to get their fix.

You can tell if someone is ktarded (high on k) by their blank stare, open mouth (tongue occasionally hanging out) and inability to walk, talk, move, comprehend, or do anything other than listen to drum & bass for hours straight.