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Stands for 'Not Laughing-But-Not-Out-Loud and Not Laughing-Out-Loud'. Pronounced nuh-lub-nol-nuh-lol. A convoluted way of saying that your not laughing.
A: Why did the chicken cross the road?
B: I don't know. Why?
A: To get to the other side!
B: nlbnolnlol
by plexicon March 16, 2009
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