ROTFLMAOSHTMTURAFIMC 

rolling on the floor laughing my ass off so hard that my turban unraveled and fell in my curry...nothing is this funny so it's usually used for epic sarcasm or for people to exaggerate for no apparent reason.

dude 1: u been on LOLcats?
dude 2: yeah! i was ROTFLMAOSHTMTURAFIMC!!1
dude 1: wow! calm the fuck down it's not that funny... =_="

ROTFLMAOSHTMTURAFIMC by someone_took_the_name_i_wanted January 1, 2011