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
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.