As part of a biker or other counterculture tattoo, pin, or jacket logo, stands for either "Dope Forever, Forever Loaded", or "Die For Fucking Liberty", depending on the wearer's mood and who's asking.
Some sources assert that this phrase is specifically
associated with the
Hell's Angels, but its origin is uncertain. It is now known broadly across various biker, deadhead, hardcore,
industrial, metal, and death metal scenes.