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To ROLL-ON-THE-FLOOR-LAUGHING so hard that the earth shakes around you. Some roflquakes have been known to destroy entire houses.
1.) That roflquake shook the house!

2.) I was hitting on aaron's sister but then she said she was only interested in guys related to her. I roflquaked so hard!
by Pi Dizzle July 27, 2009
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