Rotfl

[Becky]

rolling on the floor laughing

[Becky]

An incorrect spelling of [rofl]. Generally employed by individuals who are not well acquainted with [chatspeak], but are trying their best to fit in.

[Tina]

Roll On The Floor Laughing

[Tanya Shivari]

Stands For:
Rolling Out Terrible Farts Loudly
or
Rolling On The Floor Laughing

[Little_Girl]

Variant spelling of [ROFL] that only people who arent familiar enough with chatspeak use. They try to make others believe this is the one to write instead.

[Couch Potatoe]

chat speak for rolling on the floor laughing

[Justin Bieber]

Text talk or IM lingo for Rolling on the floor laughing. ROTFL is the same as ROFL. No one really uses ROTFL or ROFL, most people just use LOL or LMAO or LMFAO.

[Donald Trump]

An older form of ROFL that people now assume to be a new, clueless form. ROTF is documented from 1990{1}; ROTFL from 1991{2}.

{1}: http://www.catb.org/jargon/oldversions/jarg211.txt
{2}: http://www.catb.org/jargon/oldversions/jarg231.txt

[Rihanna]

Remember of the fat lady OR Rolling on the floor laughing.
( Abbreviations ) Similar to [Lmfao]

[Tariq Zaki]

written abbreviation for rolling on the floor laughing: used, for example in an internet chat room, to show that you think something is very funny