1 definition by MR.PARACHUTE OIL

Top Definition
An Acronym Generally Used By Dum Airheads Who Try To Act Cool When They Dont Actually Know What They're Saying. Stands For : Laughing My Stupid Square Fugly Slutty Hairy Fat Ass Off
boy: *tells a really funny story*
dum airhead: LMSSFSHFAO
boy: Uhm , what'd you just say? do you even know what it means? :S
by MR.PARACHUTE OIL May 10, 2010

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