L- Laughing
M- My
A- Ass
O- Off

Usually used when someone says something funny online/in a text.
Person 1: LOL, earlier Joey fell off his skateboard in the middle of a kickflip, and yet he claims he would've been able to do it.
Person 2: LMAO, that dumbass can't even ollie.
by wublovah3000 July 08, 2015

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L- Laughing
M- My
A- Ass
O- Off

Usually used when someone says something funny online/in a text.
Person 1: LOL, earlier Joey fell off his skateboard in the middle of a kickflip, and yet he claims he would've been able to do it.
Person 2: LMAO, that dumbass can't even ollie.
by wublovah3000 July 08, 2015

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Laughing my ass off. In order to pronounce it correctly, you have to say each letter individually. L. M. A. O.
LMAO she pronounced this word wrong.
by Vuldin March 27, 2015

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Acronymn for Lettuce Mayo Avocado Onions. MLIA
Person 1 : I'm going to the store would you like me get something for you ?

Person 2 : Yah, get me LMAO, thanks.
by MLIA'er September 20, 2009

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An Acronym standing for Laughing My Ass Off. Cannot be used in public because it doesn't have a good ring to it such as rofl or gtg. If it's a do-or-die situation, you can pronounce it "Elemayoh".
Noob: "yOu s|_|ck"
Normal Person: "..huh?"
Noob: "Lmao @ u r1g|-|t n4o"
by iRook June 18, 2009

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Lets Meet An Ostrich.
Man One: Wanna LMAO?

Man Two: Sure, let's meet an ostrich!
by Bruce wain February 06, 2008

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As you have read, it means Laughing My Ass Off, but what has NOT been explained is the origin. Laughing is supposed to be the best medicine, but it is also the best exercise. Well, behind sex and walking. Anyways, if you laugh, you lose weight, hence laughing your ass off.
Sara- I LMAO-ed so much last night I think I lost weight! Thanks so much sweetie!
Joe- Ya, I was hoping you would.
Sara- *GASP* *SLAP* WE ARE THROUGH!
Joe- I was jk!!!!!! LMAO
Sara- NOT FUNNY JOE!
Joe- *snickers*
Sara- I hate you.
Joe- Wanna do it? You'll lose those last 5 pounds...
Sara- .... Fine. But JUST this once!
by Laughomatic February 28, 2010

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