What is Rotf?
It is similar to the above. But it implies NO laughing. You are simply rolling on the floor.
bobby: you want to go to the go kart track?!
timmy: rotf, no
Chat Abbr., Rolling On The Floor (laughing.) See also ROTFL, ROFL, ROFLMAO, and ROFLMAOWTIME.
That is funny, man! ROTF!