[logbiscuitswave]

ㅋㅋㅋ is literally “kkk” but it’s shorthand for 크크크 (keukeukeu). There’s also ㅎㅎㅎ (hhh) that shorthand for 하하하 (hahaha). It’s much faster to just mash out those single consonants, sort of like keyboard spam laughing.

[zipping1549]

ㅎㅎㅎ is definietly not for 하하하. It's more like 흐흐흐 or 히히히, just like hehe in English.