From Longman Dictionary of Contemporary Englishblack magicˌblack ˈmagic noun [uncountable] ROMmagic that is believed to use the power of the Devil for evil purposes → white magic
Examples from the Corpus
black magic• Mystery, danger, and black magic combine in this gothic tale set in the early nineteenth century.• During this bleak phase of its history the cat became firmly linked in the popular mind with witches and black magic.• Now all they have to worry about is hexes, black magic, devil worship, voodoo curses and the occult.• They were odd, these charts, and more like black magic than business.• Plus, that old black magic.• The poly now teaches black magic?• So he put the black magic in a can - and Guinness recently sold its 100 millionth tin.Black MagicBlack Magic trademark a popular type of chocolates sold in the UK in a black box He gave me a box of Black Magic. 