Stands for Rocking Out Farting Loud
Used in many cases of drinking too much or too many beans.
Guy:Wow, I was totally R.O.F.L last night man.
Other Guy: Man, rock on!
Rolling On Floor Laughing....
Timmy: Did you ever find Bugs Bunny attractive when he would wear a skirt and act like a girl bunny???
R.O.F.L=Rolling On Floor Laughing
boy:have you ever seen a llama on the floor doing a cartwheel while balancing three plates on his head?
girl:..NO! HAHAH THATS SO FUNNY IM R.O.F.L.!!!!