S.D.M.F

SDMF is an acronym for Strength Determination Merciless Forever. See Black Label Society/Zakk Wylde for details.

S.D.M.F is a way of life for fans of BLS.

by DanieDarlin May 26, 2006

S.D.M.F.

Society Dwelling Mother Fucker
as in Zakk Wylde's Black Label Society
can also stand for Strength Determination Merciless Forever.

On The Black Label Website they will often refer to their fans as S.D.M.F.ers

by Urban Dictionary July 07, 2005