A lifeku is a haiku about daily life. For those who are unfamiliar with haiku, it is a form of Japanese poetry usually about nature, "profound," and formatted in 3 lines of 5 syllables, 7 syllables, and 5 syllables. Feel free to check out some famous haikus if you still don't get it.
I'm sure that certain half-Korean people will think that this lifeku is aimed directly at them, but in fact it has nothing to do with anyone I know. I stumbled upon it by chance (we will discuss my stumbling problem at a later date) and almost peed my pants. You can check the article here.
Hardcore, I think not Korean Special Warfare Command. Gay, maybe?