Top Definition
Mushroom Cloud Laying Motherfucker, Motherfucker... Samuel L Jackson quote from Pulp Fiction. Used by the military and PMC's to describe someone high-speed low-drag.
Joe is a M.C.L.M.M., he was with 2/75 in Panama
by Jack Frost January 25, 2007
1 more definition
Stands for "Mushroom Cloud Layin' Motherfucker, Motherfucker!" Jules says this in the movie Pulp Fiction and it is generally used to describe one who is a bad ass. Often referring to high speed types in special ops units.
"Well I'm a mushroom-cloud-layin' motherfucker, motherfucker! Every time my fingers touch brain I'm SUPERFLY T.N.T, I'm the GUNS OF THE NAVARONE." Hence, MCLMM.
by Cirillo January 27, 2006

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