1) A hip hop band that made Party Rock and I Am Not A Whore
2) Laugh my fucking ass off
Person 1: Did you see the link I sent you?
Person 2: Yeah, I was all like LMFAO
by Venobi December 13, 2013

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The Urban Dictionary Mug

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The Urban Dictionary Mug

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The Urban Dictionary T-Shirt

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The Urban Dictionary T-Shirt

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this is an abriviation that most people use instead of typing the longer version LAUGH MY FUCKING ASS OFF
britney spears : i got a new hair cut

justin timberlake: LMFAO u shaved your head!
by foxy lady 25 July 13, 2011

The Urban Dictionary Mug

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The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Your favorite word on a white mug.

Create a mug

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

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Means : let my fucking ass out !
Gives the same meaning of I ain't on that shit!
used only on the internet !
Guy1: this person is insulting you on his blog !
Guy2: whatever!I DON'T GIVE A FUCK :D
Guy1: HE MADE A GAY VIDEO FOR YOU!
Guy2:IIDGAF!IDGAD
Guy1: -___-' O.o'
Guy2 : LMFAO ! bye..
by YUS YUS BUM BUM September 06, 2010

The Urban Dictionary Mug

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The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Your favorite word on a white mug.

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The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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The Urban Dictionary T-Shirt

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The Urban Dictionary T-Shirt

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Laughing My Fucking Ass/Arse Off. Use in the same context as lol, rofl and haha.

Also a Music Duo with skyblu and redfoo.
Person 1: I was walking across the street and an old lady offered to help me across he road. What the hell!?

Person 2: LMFAO, why?
via giphy
by AmazingToastMan March 01, 2016

The Urban Dictionary Mug

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The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Your favorite word on a white mug.

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The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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The Urban Dictionary T-Shirt

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The Urban Dictionary T-Shirt

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A word people text with a straight face -__-
people will just have a blank face on looking like this -_- . Hey I saw a unicorn fucking a smurf ... *person texts* lmfaooo -_-
by Itsallogornow January 08, 2015

The Urban Dictionary Mug

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The Urban Dictionary Mug

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The Urban Dictionary Mug

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The Urban Dictionary T-Shirt

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The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

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LMFAO is a popular pop band that has written well-known songs such as "Shots", "Party Rock Anthem", "Sexy and I Know It", and "Sorry For Party Rocking". The two lead singers have afros and are named Red Foo and Sky Blue. Their two most popular albums are "Party Rock" and "Sorry for Party Rocking"
Dude! Did you hear that song by LMFAO? It rocked!
by nerdygirl88 May 23, 2012

The Urban Dictionary Mug

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The Urban Dictionary Mug

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The Urban Dictionary Mug

Your favorite word on a white mug.

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The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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The Urban Dictionary T-Shirt

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The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

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LMFAO is an acronym, abbreviation or slang word which stands for "Laughing My F***ing Ass Off"

LMFAO is an American electro pop duo consisting of rappers, producers, dancers, and DJs Redfoo and his nephew SkyBlu.
"Did you watch the LMFAO perform on stage?"
"I got an F on my test" I then said to the teacher "LMFAO!" (In this case L stands for Laugh not Laughing)
by al qaeda March 14, 2012

The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Your favorite word on a white mug.

Create a mug

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt