Top Definition
ROTFLSFHICLSMRN is an acronym standing for "Rolling On The Floor Laughing So Fucking Hard I Could Literally Shit Myself Right Now." This is almost exclusively used online and is used when a simple "haha", "lol", or even "LMFAO" won't describe really how funny something is. Other versions of this include the less vulgar "ROTFLSHICLPMRN" using "poop" instead of "shit" and excluding "fuck".
AIMfriend1: Did you hear?...Omar got rejected by another girl today
AIMfriend2: lol..what does that make 10 this week
AIMfriend1: 20!!!
by theVman12 October 30, 2006
9 Words related to ROTFLSFHICLSMRN

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