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1. L.M.G.D.M.F.A.O
Abbreviation for the term Laughing My God Damn Mother Fucking Ass Off. Often used online when one can't be bothered to actually say it all.
person1: I fell off my bike today and twisted my ankle
person2: L.M.G.D.M.F.A.O.
by Deans_babi_gurl Aug 23, 2005 add a video
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