BLACK FRIDAY n.
Any Friday on which a public disaster has occurred, as: In England, December 6, 1745, when the news of the landing of the Pretender reached London, or May 11, 1866, when a financial panic commenced. In the United States, September 24, 1869, and September 18, 1873, on which financial panics began.
BLACKBIRD n.
In England, a species of thrush (Turdus merula), a singing bird with a fin note; the merle. In America the name is given to several birds, as the Quiscalus versicolor, or crow blackbird; the Agelæus phoeniceus, or red-winged blackbird; the cowbird; the rusty grackle, etc. See Redwing.
BLACKMAIL n.
A certain rate of money, corn, cattle, or other thing, anciently paid, in the north of England and south of Scotland, to certain men who were allied to robbers, or moss troopers, to be by them protected from pillage. Sir W. Scott.