Top Definition
Acronym meaing "just kill yourself". Response to when a drama queen says "FML"
Person 1: I had too wake up early, now I have to go to work FML.

Person 2: God I'm tired of your self-pity whining, JKY
by CPA mofo September 22, 2009
1 more definition
Literally meaning "just kill yourself". Used in cases of extreme frustration of people you would really like to never see again.
Loser on AIM spamming you: LOL LOL LOL LOL LOL LOL LOL LOL
You: JKY you douche
by I'm a ninja. For real, I am. February 28, 2008

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