Top Definition
A combination of the AIM word ROFL (roll on the floor laughing) and Hilarious. Used to describe something that would make you ROFL but you didn't actually ROFL, but you could have. Its just that fuckin amazing.
dude u were in my dream last night it was roflarious!!! I gotta tell u about this, LOL.
by tappie09 April 01, 2010

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