ROTFFLMBMFAO 

rolling on the fucking floor laughing my big mother fucking ass off. IF something was that rediculously funny, you MIGHT use this.

--Hey dude.
--wut?
--I gotta joke fer ya.
--shweet, wut it be?
--knock, knock.
--holy shit man! who could it be???
--cash yo!
--cash who???
--HA! i knew u were a nut!
--ROTFFLMBMFAO!!! XD XD
--eerm... ok?

ROTFFLMBMFAO by raven_riot October 23, 2009

rotfflmfaoofl 

epic and totally useless acronym for "rolling on the fucking floor laughing my fucking ass off out fucking loud"
combination of rofl, lmao, lol and fucking

dude1: you are gay for using "rotfflmfaoofl"
dude2: ROTFFLMFAOOFL!! that's so true!

rotfflmfaoofl by J-Lima December 31, 2008

ROMFFLMMFAO 

A really long way of saying "lol".

Dude, I just saw some guy get hit in the head with a coconut and now I'm ROMFFLMMFAO!

ROMFFLMMFAO by skppy1225 September 8, 2008

rotfflmmfao 

Internet meme. Rolling on the fucking floor, laughing my mother fucking ass off. Used when extreme profanity usage is necessary.

Jim: Penis.

Ted: ROTFFLMMFAO!!!1

rotfflmmfao by b3n890 November 18, 2009

rotfflmfao 

Also for "Rolling On The Fucking Floor Laughing My Fucking Ass Off"

Something Extremely Funny

Example: Rotfflmfao, is that a guy with double D boob's wearing a dress and plucked eye braws?

rotfflmfao by Tico Me Elmo October 2, 2003

rotmfflmmfao 

rolling on the mother fucking floor laughing my mother fucking ass off

Jane: dUde, R U stonnED?
Alec: rotmfflmmfao
Jane: wtf???
Alec: asdfjkl;

rotmfflmmfao by KT<3 October 13, 2006

rotfflmfaofotfclol 

The longest abbreviation known to man
It stands for ''rolling on the fucking floor laughing my fucking ass off falling off the fucking chair laughing out loud"

somebody: and he said "suck it"
someone: rotfflmfaofotfclol
somebody: wtf

rotfflmfaofotfclol by the far April 17, 2010