In French one can use MDR which means Mort de rire to say lol.

Maria is correct. ROTFL is chat slang for "Rolling On The Floor Laughing" It is used te mean that something is very funny. It would be the next step after "LOL". (Laughing Out Loud)

R- Rolling O-on T- the F- floor L- laughing OMG- Oh my gas! hehehe

ROTFL is very similar to LMAO :)))))))))))))))))))))