Top Definition
it stands for Laugh my big fucking ass off
buddy: im gay
you: LMBFAO
by Noemi September 30, 2003

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LMBFAO can mean one of two things:
1.Laughing My Big Fucking Ass Off.
2.Laughing My Butt Fucking Ass Off.
Both are very odd things to say.
They cause confusion among many.
PersonA: Yeah,so I saw Brokeback Mountain...
PersonB:LMBFAO
PersonA:*wonders if personB is fat or gay*
PersonA:*wonders which is worse*
by bandanasarerad September 19, 2006

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.

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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.

Buy the mug

The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

Buy the t-shirt

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