ROTFLMFAOSHTISM 

it bassicly means rollin on the floor laffin fuckin my ass off so hard that i shit myself

jonny told sally that he lit the house and fire and she said ROTFLMFAOSHTISM

ROTFLMFAOSHTISM by MnCcPo March 25, 2007

rotflmaoshtipmpalb 

abbreviation, rolling on the floor laughing my a* off so hard that i peed my pants a little bit.

typing "rotflmaoshtipmpalb" in an I.M. when you are laughing really hard

rotflmaoshtipmpalb by roo0oom October 9, 2009

ROFLMFAOSHISM 

Acronym: Rolling on floor Laughing my fucking ass off so hard I shit myself

Over facebook chat

Sue: So did you hear the American Government shut down for two weeks?

Kim Jong-Un: ROFLMFAOSHISM!!!!! And they say I don't know how to run a country!

ROFLMFAOSHISM by Yandonero December 20, 2013

ROTFLMFAOSHTIDMTNYOMAT 

It stands for "Rolling On The Floor Laughing My Fucking Ass Off So Hard That I Dropped My Taco Now You Owe Me A Taco."

Also used as a more expressive way of saying "LOL."

Person 1: "ROTFLMFAOSHTIDMTNYOMAT!"
Person 2: "GRTAURTHAKJGNGNAKNYAAOYALFNGLAT!"
Person 1: "At least mine means something."

ROTFLMFAOSHTIDMTNYOMAT by Erik McLovin May 9, 2012