its an abriviation of
Laugh My Kicks Off
"omg that was so funny im lmko!"
by megacoolmagarin April 21, 2009
8 Words related to LMKO
Laughing-My-Keys-Off
When you laugh so hard that your keys fall off your computer.
Boy 1: So the other day she told me about her hookup with this ugly dude.
Boy 2: LMKO dude I cant type.
by aokjkjk June 13, 2010
Laughing my kada off
Joe: I just broke my kada

James: LMKO!!!!
by imlkrsfn April 21, 2009

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