Top definition
Rolling On The Floor Laughing My Fucking Ass Off. Cyberchat. One states something really funny and the other(s) reply with ROTFLMFAO
User1: There once was a man from Nantucket...

User2: ROTFLMFAO
by Philism January 28, 2003
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2
rolling on the floor laughing my fucking ass off

usually used in internet interaction, when someone says something funny.
Person 1:
I don't have to spellcheck eevrything

Person 2:
ROTFLMFAO
by tim December 29, 2002
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3
Stands for rolling on the floor laughing my fucking ass off. Also known as post '04 election syndrome.
Everytime I think of that guy outside the Columbus, Ohio Victory '04 Bush tour stop, I'm ROTFLMFAO at how he kept chanting "Four more days."
by Nikthenyetminder November 17, 2004
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4
rolling on the floor laughing my fucking ass off

commonly used on cell phones and msn
Guy 1:DUDE MY DOG JUST TOOK A SHIT ON THE FLOOR!!!
Guy 2:ROTFLMFAO
by 15marsht October 06, 2008
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5
That movie i saw yesterday made me ROTFLMFAO
by Conan Edigawa September 18, 2008
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The vengeful act of crapping on a lover's chest while they sleep.

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6
XSefiros: that kid is a flaming homosexual....=|
Luca_Goers: ROTFLMFAO!
by XSefiros August 10, 2003
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7
1. an acronym used by supergeeks in order to express approval of comments or anecdotes or to acknowledge a humorous occurrence, usually typed in chatrooms or during online gaming.
2. A sure-fire indication that one will never be laid by a woman you don't pay for.
"hhhmmmhey...I mega-fragged OCClanSuPerPain039 when he tried to grab the flag...ROTFLMFAO....glavin...hhmhey"
by John Cocktoastin January 28, 2003
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