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1.
rollin on the floor laughing out loud
#1: j00 n00b, 1m g0nn4 h@X0rz ur m0mzorz
#2: rotflol
by Iceking May 25, 2003
 
2.
ROTFLOL Mixes ROFL (Rolling on the Floor Laughing) and LOL (Laugh out Loud) and creates a magical mixture.

ROTFLOL stands for "Rolling on the floor, laughing out loud"
Weird Al's Song "White and Nerdy" : ROTFLOL <a sign behind al as he sings>

via msn

Joe Says : Welcome... to the BATTT CAVVEEEE
Bruno Says : ROTFLOL....
by Dark Elite November 10, 2006
 
3.
Rolling on the floor laughing out loud.
I memorized Holy Grail really well
I can recite it right now and have you R-O-T-F-L-O-L
by Ryan Fleming October 24, 2006
 
4.
Accronym for Rolling On The Floor Laughing Out Loud.
In text or Facebook chat or IM when someone says somthing funny you might respond with ROTFLOL
by UrbanSuburban11 October 01, 2009
 
5.
ROTFLOL; n. -The name of the imaginary candle-shaped animal George Bush jr. sees when he has taken just a smidge too much heroin. George and ROTFLOL go on many adventures together.
'ROTFLOL! I thought you were gone forever!' 'I will never leave you, George! As long as heroin pumps through your veins, I'll be here.' 'ROTFLOL!'
by F. Johnston August 09, 2007