LAMK means "Let a motherfucker know." Used when a person is angered and about to tell someone off in a no-holds-barred way.
I need to LAMK that I don't play that shit!
Don't get LAMK'd!
by ebonysivory March 8, 2010
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Ette:Ive set up aonther WoW account dude!
Kerry:Eugh you major computer geek, stay away!!
Ette:Shut up you douchebag!You wouldnt know what a celerion was if it farted in your face!
Me:LAMK!
by Queene October 2, 2007
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JVTP:Andria is fat!
Seize:lamk, i kno right.
by Jvtp/Seize January 31, 2009
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