The full form of ROFL is “Rolling/rolled on the floor, laughing.” It is very common in social texting, and it is used to refer to something that is very funny. In most cases, the individual typing this not literally rolling on the floor.
Other common acronym used when something is funny include:
LOL, which means “laugh/laughing out loud.”
LMAO – “laughing my ass off.”
LMFAO – “laughing my fat ass off.”
These online short forms of text are commonly in informal. They have formed the basis of our conversations. These are often used on chat on platforms such as Facebook, Instagram, Twitter, telegram, and so on.