The combination of the names of the leader-Jung Yunho and the lead singer-Kim Jaejoong of the Korean/Japanese band TVXQ. It is a couple name used to refer to the relationship between the two boys- as regards to the nature of this as a part of 'fanservice' and friendship or something greater like yaoi has been a topic of constant debate. Since neither have confirmed or denied existence of anything other than friendship but continuing to behave which can be interpreted either way.
Fan 1: I really like YunJae
Fan 2 : They are not real!!
Fan 1:Duh! They are, you must be blind not to see the way they act towards each other...
Fan 2: No way they are just good friends.
Fan 1: You are just too blind to seethe obvious!
by Queenlucifer April 8, 2010
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Combination of the two names, Yunho and Jaejoong.
A cute, sexy, adorkable, hot, unique, everlasting YAOI couple.
YunJae.....everlasting love.

P.S: Who ever thinks YunJae isn't true, is SO retarted!!
by Sayu-Chan March 14, 2008
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1. Noun A majestic figure residing in Bucheon, S. Korea. Although not much is known about Yunjae, rumors are being told that anybody who sees Yunjae will suffer from a heart attack, due to his shockingly-superior appearance. Due to this, there are many followers who praise and worship Yunjae.

2.Adjective A state of self-accomplishment so high that one may confuse it with an sexual pleasure.
1. I can't believe Santa forgot my Christmas present! I guess it's time to pray to Yunjae for my gifts.

2. Holy shit one million dollars?! I've just Yunjaed my self!
by The one who has been chosen March 18, 2017
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