BLACK SABBATH – from a 1960’s cheap horror movie starring Boris Karloff , suggesting a holy day of witchcraft.
CHEAP TRICK – they say the band members asked a Ouija Board what they should call themselves.
COLLECTIVE SOUL – a term used in the popular novel “The Fountainhead”, by Ayn Rand.
EVERYTHING BUT THE GIRL – from an ad for a British clothing store that would sell you “Everything but the Girl” that you saw in the ad.
MEGADETH – Dave Mustane was inspired by a government pamphlet he saw after leaving METALLICA. A Megadeath is a military term for one million dead (making World War II an 80 Megadeath)
Great list, but best read with a pinch of salt.