It means, Rolling on FLoor Until Stomach Hurts. It is derived from rofl or roflmao and is believed to have been first used in the Malaysiangaming community.
When a computer user sees something on the internet that he accidentally pissed himself laughing so hard, unfortunately this makes the floor wet. A long version of this term is rolling on floor laughing so hard that a little bit of pee came out. Pronounced - (rofel-sh-tal-bop-co).
Can also rarely be used to describe eastern europeans.
1. I just saw an old woman accidentally fall into a wood
chipper, roflshtalbopco
2. I killed your whole family for a practical joke, ROFLSHTALBOPCO!!!
3. Yeah, dont make friends with him Tom, hes a roflshtalbopco.
4. My mum was really mad yesterday because I done a
roflshtalbopco all over the kitchen.
Ron: Quick Harry hide!
Harry: He's found me and... OMG he has hair... LOL
Ron: Harry i said RUN AND HIDE!
Harry: ROFLSHVUAKOMAIL
Ron: HA! Voldemort Fail.
-or- it can be used in the past tense - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Person 1: Dude i just totally Roflshismed my pants after watching him play basketball
** Since the -ed ending has been added the acronym can no longer be used, but instead it is implied that the user of the word rolled on the floor, laughed so hard they shit themself except in the past tense**