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ROFL

or ROTFL

  1. rolling/rolled on the floor laughing: written in response to something very funny.
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Origin of ROFL

from its use in digital communications
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for rotfl

ROTFL

abbreviation for
  1. rolling on the floor laughing
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ROFL

abbreviation for
  1. rolling on floor laughing
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for rotfl

rofl

by 1993, online chat abbreviation for rolling on the floor laughing.

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Online Etymology Dictionary, © 2010 Douglas Harper