Top Definition
"Laughing My Knotted Balls Off"
There is a possible way of a man getting their balls tied in a knot and online insted of using the usual LOL or LMFAO or LMAO ect. people that know people that have gotten their balls tied in a knot or just want to use the term say it when something is incredibly funny.
IMperson1:so he said omg you got pooped on by a bird
IMperson2: LMKBO!!!!
by HarajukuLolita July 29, 2005

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