The Oxford Dictionary classifies JYJ as the synonym to "troubles" used by some group of well... users. As for the origin of this word, let me quote it: "The use of JYJ in the sense of troubles comes probably from the proto-group original language called SMEnt-ese. This language, still used by few remnants of then-so-powerful habitants of Han River basin, is characterised by a very complex syntax and unique semantics that make the sentences incomprehensible to anyone outside the highly acquainted group of users". Examples of usage: Oh, I read some JYJ on the Nate! (meaning: I read that there has been some troubles in the Korean Entertainment world again).
Contemporary usage in the form of News cut below.
I added also a cut with Ha Jeongwu (lalala^^)
Links:
Ha Jeongwu
JYJ MBC News
Thank you for watching^^
Links:
Ha Jeongwu
JYJ MBC News
Thank you for watching^^
Ha Jeongwu^^