1 definition by Yoder

SDMF is a the creation of Black Label Society--a band led by Ozzy Ozborne's guitarist Zakk Wylde. SDMF is a unique hybrid of shared ideals and fan club. The actual acronym is most commonly read out as either "Society Dwelling Mother Fucker" or "Strength Determination Merciless Forever"
I am a SDMF, and do not wear pink polo shirts with the collars up.
by Yoder March 31, 2005
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