chemical generation
noun a section of society identified as the first to have MDMA, the drug best known as ecstasy, as a recreational option, especially those who were actually a part of the attendant dance culture. The chemical generation began in the late 1980s but was probably not identified by this title until the late 90s; the definitive recreational drug culture was not restricted to MDMA but its wide use signalled a greater-than-ever-before acceptance of man-made and designer drugs
UK, 1998