ROTF

ROTFL

slang An initialism of "rolling on the floor laughing," used in text-based communication to indicate that something is very funny or ridiculous. Often lower case. More commonly seen as "ROFL." I just saw a monkey riding on the back of a pig! rotfl
Farlex Dictionary of Idioms.

ROTFL

verb
See rolling on the floor laughing my ass off

RO(T)F(L)

interj. rolling on the floor laughing. (Used in electronic mail and computer forum or news group messages. Not pronounced aloud.) I was ROTFL when I read your note. That was too much.

ROTF

verb
See ROTFL
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • WTG
  • HBU
  • CTFO
  • YKWIM
  • YMBJ
  • FTS
  • BTS
  • AINEC
  • DYJHI
  • DYJHIW