Slang, explained by the people who actually use it.

명사 "꿀"과 "재미"를 줄인 "잼"의 합성어. '완전 재밌다'는 뜻이다.

Originally from a polite gamer sign-off ("enjoy the game"), it got shortened over time and repurposed to mean "forget it" or "get lost" — often used to shut down an absurd item-trade offer or dismiss someone outright.

"King" (English) plus the Chinese character for king (王) plus "jjang" (the best) — the best of the best. Reportedly discovered during a "find the worst username" event on DC Inside's World of Warcraft gallery.

Short for mutuals — people you follow who follow you back.

"Away from keyboard" — not currently at your device.

"Honey" (kkul) plus a shortened "fun" (jaem) — means "a great time, really fun."

Laughing extremely hard (in text).

Over the top, more dramatic than the situation needs.