Top definition
Rolling on the fucking floor laughing my fucking ass fucking off.

For use when you just feel like using a really long acronym that accurately describes the hilarity of what was just said using the f word as many times as possible. An extended version of rofl combined with lmao. Also used to make fun of people who use every acronym known to mankind in a conversation.
user432: OMG! I totally just saw a purple elephant fly by my bloody window! I think it was carrying a baby!

mandy2879: rotfflmfafo! You are so totally ridiculous!
by anthrogeek August 21, 2008
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