Click here, It is a great site that I have come across.  I referr to it all the time when I don't know what an aberivation means.  Just bookmark it or add it to your favourites so you can referr to it all the time.

laugh my ass off

It's not a stupid question - I remember when I first started on the net & was getting that sort of thing! It takes getting used to! Here's some others you may or may not know....

lmfao - laughing my f**ing arse off    ......    roflma - rolling on floor laughing my arse off  ......   roflmfao - rolling on floor laughing my f**ing arse off ...... pml - pissing myself laughing  .....  rof - rolling on floor  

Hope that helps!

I don't think it was a stupid question because i had no idea what all the letters mean. I'm new to these sort of sites. Thanks for asking the question that i'm sure a lot of people wanted to ask. xxx

take notice of the related link below your question.  it is another qa but has other links and abbreviations

Ah, yeah, took me awhile to work this one out too!  Angieh has it right though.

Laughing My Arse Off