/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

The "Weapons" board of 4chan.
A regular poster on /k/ is usually referred to as a /k/ommando, and discussions usually involve modern weaponry, but this is by no means exclusive.
Like most other boards on the site, it is primarily likened to a river of shit with gold nuggets on the bottom. Whether or not it is worth panning is entirely up to you.

/k/ is a hangout place , (part of lowyat.net) for most malaysian people who have nbtd. Its also frequented by non malaysians alike, such as singaporeans and others

It can be said to be one of the most famous hangout area for kiddos, 2 inches, teens, adults, uncles and aunties. It provides some of the best entertainment for people of all walks of life, ranging from weird news, real life accounts, pics, rants, jokes, whines and etc.

U can often hear the words "nuke"/"vacation"/"banhammer"/"kolos"/1st/ and so on
Many additional new terms have been derived in /k/