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1.
Engrish version of LMFAO...Laughing My F*cking A*s Off.
Oh, sank you so belly much for retting me watch Purdue Football. They suck so bad, I was RMFAO!
by Robster Craws September 07, 2005

Words related to RMFAO

funny humor jokable jokeable lol
 
2.
Acronym for "Rolling My Fucking Ass Off," commonly used by ravers who have taken some "good" or real Ecstasy (MDMA).
"OMFG dude, I just dropped a white quadruple-stacked Mitsubishi and I'm RMFAO!"
by The Posp May 27, 2004