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acronym: Rolling On Floor Laughing, Coughing Up Phlegm

It may be extended to indicate the quantity or duration of ROFLCUP by using ROFLCUPful as a measuring unit.
He had a bad cold and so his mates' Facebook comments made him ROFLCUP.

While ROFL he had a phlegmgasm and hoiked up a ROFLCUPful of lung juice.
ROFLCUP by memeweaver July 20, 2012
Related Words

roflcide 

death caused by rolling on the floor laughing
guy1:"did you hear about john?"

guy2:"yea he was rofling after reading this definition and example and hit his computer desk causing the computer to come crashing down on top of him killing him"

guy1:"man that's serious roflcide"
roflcide by T-Hop June 10, 2008

roflcide 

The laughter great enough to destroy a generation!!
John: Hitler may have commited genocide...

John: But i commit roflcide

Jesus: ZOMGZLOL!!!!111ioneeleven
roflcide by Zomgzlollercaust July 17, 2006
roflud
roflud by Sakura626 August 13, 2010

roflcupcakes 

A word I invented a while ago sorta=/

It's that one word you've always wanted to use if you want to hint at someone that something isn't really that funny.
person:*fart*
person2:RFOFLL!1
person3:FUNNEY!!LO!L!
person4:YEA I KNO LOLL ROFLCAKEZZZ!11!11eleventhousandonehundredeleven
roflcupcakes by SuicidalOReo November 17, 2004

roflscud 

When ROFL just isn't enough for something really funny, use ROFLSCUD!! This is used to rofl at something REALLY funny.
-"Hey look, George Bush fell off the stage today"
-"ROFLSCUD!!11"
roflscud by ROFL February 12, 2005