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An acronym that stands for, "Laughing my cats off." Originating from the geeky MacRumors forums where a member laughed so hard, his/her cats were scared off the bed.
"Dude, I heard that Apple's gonna release a PowerBook G5 next Tuesday!"

"LMCO"
by joe_schmo February 08, 2007
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2
Laughing My Cats Off: Laughing at something while ones cats are on your bed, causing them to fall/jump off the bed. Therefore - Laughing my Cats off
<Joke>
Hahaha, LMCO!
by Mark Nicholson February 08, 2007
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3
A new term for 'LOL'. Means laughing my cunt off.
Kelly - "LMAO!"
Arielle - " Don't you mean LMCO?"
by Valencia Kreemy September 20, 2008
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4
joe: my girlfriend just dumped me

mike: lmco
by Abdhul July 17, 2006
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5
Laugh My Culo Off
Bum :Damn Nigga U Gay
Bum #2 : LMCO
by Koopay October 07, 2009
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6
that joke dave chapelle just told made me lmco
by mrhinds March 25, 2004
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7
guy1: dude. look at that girl. shes hot.
guy2: yea. lmco.
by mactheman069 January 24, 2008
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