a black spot
a place that is notorious for something, especially a high crime or accident rate.
be in someone's black books
be in disfavour with someone.
beat someone black and blue
hit someone so severely that they are covered in bruises.
black and blue
bruised, either physically or metaphorically.
if there is a black hole in financial accounts, money has disappeared.
someone who is the black sheep doesn't fit into a group or family because their behaviour or character is not good enough.
if you vote against allowing someone to be a member of an organisation or group, you are blackballing him or her.
i. to darken by putting out or dimming electric light
ii. to lose consciousnesss
in the black
not owing any money; solvent.
in black and white
i. writing or in print, and regarded as more reliable than by word of mouth,
ii. in terms of clearly defined opposing principles or issues.
iii. when it is very clear who or what is right and wrong, then the situation is black and white.
not as black as you are painted
not as bad as you are said to be.