Top Definition
Laugh my mother fucking ass off.

You would use this when talking to someone online or when writing a letter and your too lazy to writ it all out.
Val fell on her ass today, lmmfao.
di nevada 02 dicembre 2003

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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!
di muhlio 31 ottobre 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."
di #1newboyzgroupie 06 agosto 2011

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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!!!
di Melfina 26 marzo 2004

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laughing my mother fucking ass off
joe:dude did u see that chicks face
stan:lmmfao yes it was ugly
di frigenfrigon 20 maggio 2010

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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!
di marissanandrea 16 febbraio 2009

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Soft and offensive. Just like you.

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Lauging my mother fucking ass off.
LMAO you suck!
di Anonymous 31 gennaio 2003

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Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

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