a black spot
A long-lasting negative impact of a mistake. Jerry's speeding ticket was a black spot on his driving record that prevented him from getting a job as a delivery man.
a black spot
a place that is notorious for something, especially a high crime or accident rate. 1992 Radio Times Jonathon Porritt meets the ‘green warriors’ who are spearheading campaigns to clean up some of the world's worst pollution black spots.
a ˈblack spot
a place where accidents often happen, especially on a road: This junction is a well-known accident black spot.