ROTFLMAO 

A chatroom abbreviation used mainly by imbeciles, usually in response to something mildly, often very mildly, amusing. People who use this type of shorthand should be avoided like the Spanish flu.

I would've married her, but I found out that she goes into chatrooms and uses shorthand like LOL and ROTFLMAO. Therefore, I broke off our engagement and changed the locks to my apartment.

ROTFLMAO by My dixie wrecked November 25, 2003

rotflmao 

it means Rolling On The Floor Laughing My Ass Off.
its usualy said when someone says something extremely funny. it comes from "Rotfl" (Rolling on the floor laughing) and "lmao" (laughing my ass off". it is often used in the same case as "lol" (laugh out loud).

that was funny rotflmao

rotflmao by Elizabeth McBrittle November 6, 2007

rotflmao 

rolling on the floor laughing my ass off

When I saw those two guys, who had been competing for the same hot babe all evening realized it was a guy in drag, I was rotflmao.

rotflmao by Carey Schug March 16, 2008

rotflmao 

Rolling On The Flor, Laughing My Ass Off.
Used instead of the out of date LOL.

rotflmao, that sucks.

rotflmao by Z April 10, 2005

ROTFLMAO 

Rolling On The Floor Laughing My Ass Off; usually used in Internet Relay Chats so that one does not have to type all those words!

<shiznit>That guys a homo!
<mark_real>ROTFLMAO

ROTFLMAO by Mark Real April 11, 2003

ROTFLMAO 

Rolls on the floor laughing my arse off

ROTFLMAO by Anonymous April 11, 2003

ROTFLMAO 

Rolling on the floor laughing my arse off

ROTFLMAO by Coops April 11, 2003