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
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