Question for Black Label Society fans?

So, what does SDMF mean? I know it stands for strength determination merciless forever, but whats that mean, that you treat people mercilessly or what? Also, what is doom crew inc about, and why do you guys call yourselves beserkers? I went to a BLS concert last night and saw a lot of jackets with this stuff on them and was very curious but didn't want my *** kicked by a hate club for asking, if thats what you are. Please explain this stuff to me. Cause I thought the show was absolutely incredible and loved the music Zakk Wylde put out.