After being sacked from Hawkwind in 1975, supposedly for “doing the wrong drugs,” Lemmy Kilmister decided to form a new band, originally to be called Bastard. Realizing that this would preclude them from commercial acceptance, he eventually settled on Motörhead, after a song he had written for Hawkwind. His stated aim was for the outfit to be “the dirtiest rock n’ roll band in the world”. The name Motörhead was derived from a slang term for an amphetamine user....