Laugh My Mother Fucking Ass Off - Normally used online when one laughs so hard s/he has to use acronyms... Associated with lmao and rofl...
Mel: OMFG, guess what!!!
Joe: What?!!?!??!
Mel: My cat fell into the toilet. :(
Joe: LMMFAO!!!
by Melfina March 27, 2004
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Niggette:Guess wha
Nigga:What
Nigette:I said guess
Nigga no tell me
Nigette fineI watch my hamter
Nigga:LMMFAO
by Kishawnna January 26, 2007
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Laugh My Mother Fucking Ass Off. Similar to "lmao," or "lmfao," but instead of "Laugh My Ass Off," or "Laugh My Fucking Ass Off," it adds the impact with "Mother".
Mike: "So the dog walked itself home, ate a pizza, and took a nap."

Joe: "LMAO!"

Peter: "LMFAO!"

Scott: "No dudes, LMMFAO."
by #1newboyzgroupie August 6, 2011
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laughing my mother fucking ass off
(when u feel that lmfao isnt enough)
guy1: Q:why did the toilet paper roll down the hill?
A: because it wanted to get to the bottom

guy2: LMMFAO!
by muhlio October 31, 2007
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when something deserves a term that is funnier then it should be. Stronger than "lmfao" or "lol". so when you actually start laughing on your computer desktop you now know what to write. used for IMing or texting only.
sports4eva: i might tape record ms.rodriguez so she remember things more often and i dont have to get stuck doing doing my work double!

wateva13: lmmfao! do it!
by marissanandrea February 16, 2009
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Laugh My Mother Fucking Ass Off at you - Normally used online when one laughs so hard s/he has to use acronyms... Associated with lmao and rofl...
Mel: OMFG, guess
i cant beleive you said that lmfao@u
by Tim Clarey May 30, 2005
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