Top Definition
Fuck My Ass Off Laughing
This is just LMFAO, switched around, for a new, funner word that you and your friends can say to eachother and confuse the fuck out of other people, and fmaol at their cluelessness.
Jim - Dude, i totally FMAOL'd when i found out derek's girlfriend had a cock...that's bigger than mine.
by cockboybuttslut February 01, 2010

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