ROTFLMAOMFGTFOADIAFTWTF

Internet acronyms used to express extreme amusement and/or disbelief, strung together to make one very wrong word.

Short for:

Rolling On The Floor Laughing My Ass Off
Oh My Fucking God
Get The Fuck Out
Fuck Off And Die In A Fire
For The Win
What The Fuck

So guess who I saw today?

Who?
I saw Lisa today!
Really? ROTFLMAOMFGTFOADIAFTWTF